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2012 Isuzu N Series TSBs

108 Technical Service Bulletins across 12 categories

Engine

44 bulletins
11030904

SERVICE BULLETIN - THE PURPOSE OF THIS BULLETIN IS TO DESCRIBE DIFFERENT INSTANCES WHERE OIL CONSUMPTION OCCURS AND TO...

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MAKE AVAILABLE A WORKSHEET TO ASSIST THE TECHNICIAN IN DETERMINING IF OIL CONSUMPTION IS EXCESSIVE. OIL USAGE HAS A DIRECT RELATIONSHIP WITH THE AMOUNT OF FUEL USED. THE HARDER AN ENGINE WORKS, THE MORE FUEL AND OIL IT WILL USE. THEREFORE, OIL USAGE AS A FACTOR OF FUEL USAGE IS A MORE ACCURATE INDICATOR OF ACCEPTABLE OIL CONSUMPTION. THE ACCEPTED RATE OF OIL CONSUMPTION FOR THE AFFECTED VEHICLES IN THIS BULLETIN IS 0.946 LITER (1 QT) WITHIN 379 LITERS (100 GALLONS) OF FUEL USED. THIS RATE ONLY APPLIES TO VEHICLES UNDER WARRANTY, MAINTAINED IN ACCORDANCE WITH THE APPROPRIATE MAINTENANCE SCHEDULE, DRIVEN AT LEGAL SPEEDS AND WITHIN DESIGN INTENT OF THE VEHICLE. MANY FACTORS CAN AFFECT AN OWNER'S CONCERN WITH OIL CONSUMPTION. DRIVING HABITS AND VEHICLE MAINTENANCE VARY FROM OWNER TO OWNER. THOROUGHLY EVALUATE EACH CASE BEFORE DECIDING WHETHER THE VEHICLE IN QUESTION HAS ABNORMAL ENGINE OIL CONSUMPTION.

11013600

INFORMATION BULLETIN: CLEAN IDLE LABEL REPLACEMENT PROCEDURES

11012613

INFORMATION BULLETIN: THE VACUUM PUMP SERVICE PART FOR AFFECTED VEHICLES LISTED IN THIS BULLETIN HAS BEEN SUPERSEDED AND...

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IS NOW THE SAME VACUUM PUMP THAT IS THE SERVICE PART FOR THE 6.6L GAS ENGINE. THE UPDATED PUMP REQUIRES THE OUTLET VACUUM HOSE TO BE REROUTED FOR PROPER FITMENT. FOLLOW THE SERVICE PROCEDURE BELOW TO INSTALL THE UPDATED REPLACEMENT VACUUM PUMP AND REROUTE THE OUTLET VACUUM HOSE AS SET FORTH BELOW.

11007177

INFORMATION BULLETIN: THIS BULLETIN APPLIES TO ALL OEM AND REMANUFACTURED ENGINE AND TRANSMISSION ASSEMBLIES, FOR THE...

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AFFECTED VEHICLES LISTED ABOVE, TO BE REPLACED UNDER THE ISUZU NEW VEHICLE WARRANTY, GOODWILL, ISUZU PARTS WARRANTY, GOLD STAR USED TRUCK WARRANTY AND/OR ALL EXTENDED POWERTRAIN WARRANTIES OFFERED BY ISUZU, AS WELL AS ALL OVER-THE-COUNTER ENGINE AND TRANSMISSION ASSEMBLY REPLACEMENTS.

10244945

The following information is provided to clearly explain Isuzus policy for control module (engine, transmission,...

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antilock brake, instrument panel, body control, power interface, etc.) reprogramming. Control module calibrations are regularly updated for many reasons. These reasons may include, but are not limited to: model year change, software corrections, certification compliance, product improvement and specific application requirements. However, the mere existence of a newer control module calibration does not necessarily mean that warranty coverage exists or that the calibration must be installed. It is not our policy to update control modules, under warranty or after warranty, based solely on the availability of a newer calibration file. Below are our guidelines for reprogramming control modules.

10244940

In the past, replacement 6.0L gasoline and RPO KL8/LC8 Alternative Fuel Capable engines came as a certain configuration.

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These engines are now provided as different long block assembly configurations. The new configurations do not include many of the components that were provided with or pre-installed on the complete engine assemblies previously sold as replacement parts.

10241827

The vacuum pump service part for affected vehicles listed in this bulletin has been superseded and is now the same...

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vacuum pump that is the service part for the 6.6L gas engine. The updated pump requires the outlet vacuum hose be rerouted for proper fitment. Follow the service procedure below to install the updated replacement vacuum pump and reroute the outlet vacuum hose as set forth below.

10238687

In the past, replacement 6.0L gasoline and RPO KL8 Alternative Fuel Capable engines came as a complete assembly.

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These engines are now provided as long block assemblies. The new configurations do not include many of the components that were provided with or pre-installed on the complete engine assemblies previously sold as replacement parts.

10235685

Isuzu Commercial Truck of America (ICTA) has been receiving warranty part returns that have aftermarket catalytic...

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converters welded in place instead of the OEM catalytic converter. This is because vehicle owners who have had the OEM or Fleet Value catalytic converters stolen from their vehicles often replace the stolen catalytic converters aftermarket with non-Isuzu parts. When those replacement parts fail and cause the check engine light to illuminate, vehicle owners may seek to have the non-Isuzu replacement catalytic converter repaired or replaced under warranty. In fact, however, neither the new vehicle warranty nor the one-year replacement part warranty covers the failed non-Isuzu part.

10233458

What is IDA? IDA is a diagnostic program that provides: 1) DTC Analysis: IDA analyzed DTCs (currently 35) and then...

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provides quick and easy-to-understand repair solutions 2) DPF Early Regeneration Warning: IDA also reviews the three latest DPF regeneration odometer readings in the Health Report of the applicable VIN on IDA. IDA then analyzes the distances between the three regenerations. If the average of these distances is less than 55 km for a 4HK1 (5.2L) engine, or less than 70 km for a 4JJ1 (3.0L) engine, an alert will be shown on the IDA page in the form of a red regeneration icon. This is an early warning indication that a problem may be forming in the DPF regeneration cycle. However, if the enabling criteria shown above are not met, a regeneration icon will not appear on the IDA for that particular VIN. Detailed instructions on how to use IDA are included in this bulletin.

10233457

In the past 6.0L gasoline engines came as a new long block assembly.

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These engines are now provided as remanufactured long block assemblies. The remanufactured configuration does not include some of the same components as the previous new long block configuration did.

10225520

All engines require oil to lubricate and protect the load bearing and internal moving parts from wear including cylinder...

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walls, pistons, and piston rings. When a piston moves down its cylinder, a thin film of oil is left on the cylinder wall. During the combustion process, part of this oil layer is consumed. As a result, varying rates of oil consumption are accepted as normal in all engines. The purpose of this bulletin is to describe different instances where oil consumption occurs and to make available a worksheet to assist the technician in determining if oil consumption is excessive.

10210808

In some 2012 2017MY Isuzu N-Series trucks equipped with 6.0L gasoline engines, the E-98 and E-97 ground terminals may...

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have excess tape or glue on the ground terminal surfaces from the engine harness manufacturing process. Over time, this condition may result in a poor ground connection. If the resistance of these grounds becomes too high, the engine may surge. If the engine surges as the vehicle is coming to a stop or just after it has stopped, and at the same time the driver is applying very light brake pressure e.g., the driver only partially depresses the brake pedal or uses just the tip of their foot to press the brake pedal) or the driver is not applying any pressure on the brake pedal, the vehicle may move slightly. Your Isuzu dealer will clean, inspect, and, if necessary, replace the E-98 and E-97 ground terminals. This service will be provided free of charge.

10209894

On Isuzu N-Series Crew Cab Models, most engine and engine driven components for on-vehicle service, both for gasoline...

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and diesel engines, can be accessed through the interior of the cab. There are 3 access points to create space for service and maintenance. The 3 access points are shown in the included images. Detailed information is now available in the Crew Cab section of all applicable Workshop Manuals (WSM). Please review the specific WSM for your vehicle for further details.

10209886

Some customers may experience a "Crank No Start" condition in the vehicles listed.

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The following diagnosis might be helpful if the vehicles exhibits the symptom(s) described in this Information Bulletin. Condition/Concern On rare occasions, a crank no start may be encountered on a 6.0 V8 engine. During diagnosis, the technician will find proper fuel pressure, spark from each spark plug wire, and proper injector pulse. However, the following concerns will be noted during their diagnosis: low static compression, excessive cylinder leakage past an intake or exhaust valve, the engine may start but run poorly if the CMP sensor is disconnected, and/or the valve train may not move while cranking the engine. This concern may be the result of a sheared camshaft sprocket locating pin due to the camshaft seizing to the camshaft bearings at one time.

10208789

The following table contains many possible causes for the following symptoms.

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-Hard Start/No Start -Rough, Misfire, Unstable or Incorrect Idle -Surges, Lack of Power, Hesitation, Lag or Stumble While some of these symptoms may lead to component replacement, the replacement should not be considered a completed repair. These types of symptoms have a high probability for a repeat repair since the true source of the failure is typically fuel contamination. In order to improve the overall repair and reduce the potential repeat failures, the procedure below is provided to assist in identifying the source of fuel contamination. Additionally, this bulletin will provide information to clarify the meaning of injector balancing rates and how to apply the values when trying to diagnose the Isuzu common rail fuel system.

10190782

THIS INFORMATION IS BEING ISSUED TO HELP DEALERS IDENTIFY APOTENTIAL SOURCE FOR FUEL CONTAMINATION.

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IF A CUSTOMER'S COMPLAINT LEADS TO THE DISCOVERY OF CONTAMINATED FUEL, THE SOURCE OF THE CONTAMINATION MUST BE FOUND AND REPAIRED. CONTAMINATED FUEL MAY RESULT IN MANY DIFFERENT FAILURES. SOME EXAMPLES OF THESE FAILURES ARE: PLUGGED FUEL FILTERS, POOR ENGINE PERFORMANCE, CHECK ENGINE LIGHT ILLUMINATION, FUEL SYSTEM (LINES AND TANK) CORROSION (RUST), ETC...ISUZU'S FAILURE INVESTIGATIONS HAVE FOUND A COMMON OCCURENCE OF THE FUEL FILLER NECK BEING INSTALLED INCORRECTLY. THIS POOR INSTALLATION WILL ALLOW UNWANTED MATERIAL TO ENTER THE FUEL TANK CONTAMINATING THE FUEL. USE THE INFORMATION BELOW TO CONFIRM THE FUEL FILLER NECK IS INSTALLED CORRECTLY. IF THE FILLER NECK INSTALLATION IS INCORRECT, USE THE INFORMATION BELOW TO REPAIR THE FUEL FILLER NECK. DETAILED INFORMATION REGARDING FUEL FILLER NECK INSTALLATION CAN BE FOUND IN ISUZU'S BODY BUILDER GUIDE.

10178754

ISUZU DIESEL ENGINES AVAILABLE IN THE ABOVE AFFECTED VEHICLES MEET THE CALIFORNIA AIR RESOURCE BOARD'S (CARB) OPTIONAL...

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IDLING EMISSIONS STANDARD OF 30 GRAMS PER HOUR OF OXIDES OF NITROGEN (NOX) WITH NO INCREASE IN THE EMISSION OF OTHER REGULATED POLLUTANTS. AS A RESULT THESE VEHICLES HAVE BEEN APPROVED AS "CERTIFIED CLEAN IDLE" AND ARE "EXEMPT" FROM THE ENGINE SHUTDOWN SYSTEM (ESS) REQUIREMNET PURSUANT OT SECTION 1956.8 OF TITLE 13, CALIFORNIA CODE OF REGULATIONS. AS REQUIRED BY THE ESS REGULATION, FOR "CERTIFICED CLEAN IDLE" VEHICLES, ISUZU HAS INTRODUCED A TAMPER RESISTANCE "CERTIFIED CLEAN IDLE" LABEL LOCATED ON THE DRIVER'S SIDE DOOR PANEL. IT IS IMPORTANT THAT THIS LABEL REMAIN, PERMANENTLY, ON THE VEHICLE TO IDENTIFY IT AS "CERTIFIED CLEAN IDLE." CARB REQUIRES THIS LABEL AS EVIDENCE THAT, AT HTE TIME OF MANUFACTURE, THE ENGINE INSTALLED MET THE APPLICABLE EMISSION STANDARDS. SHOULD THE LABEL BE FOUND MISSING OR DAMGED DURING AN INSPECTION, A CITATION AND PENALTIES MAY BE ISSUED. IF THE VEHICLE IS OPERATED IN CALIFORNIA WITH A DAMAGED OR MISSING CLEAN IDLE LABEL, ISUZU RECOMMENDS VEHICLE OPERATORS FOLLOW THE 5 MINUTE ESS REQUIREMENT BY MANUALLY TURNING OFF THE ENGINE. FOLLOWING THIS ESS REQUIREMNET WILL KEEP THE VEHICLE OPERATION COMPLIANT UNTIL A REPLACEMENT LABEL CAN BE INSTALLED. "CLEAN AIR IDLE" LABELS ARE PRINTED WITH A SERIAL NUMBER AND REGISTERED TO AN INDIVIDUAL VIN. AS A RESULT, A REPLACEMNET LABEL WILL ALSO INCLUDE A NEW SERIAL NUMBER WHICH MUST BE REGISTERED TO THE VEHICLE'S VIN BY THE MANUFACTURER. THE BELOW INFORMATION IS PROVIDED TO ASSIT IN ACQUIRING, REPLACING AND REGISTERING A REPLACEMENT LABEL.

10175864

AN INVESTIGATION OF RETURNED TURBOCHARGERS HAS IDENTIFIED A COMMON OCCURRENCE OF TURBOCHARGERS BEING REPLACED DUE TO...

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INTERNAL OIL LEAKS WHEN, IN FACT, THERE IS NO OIL LEAK IN OR OTHER FAULT WITH THE TURBOCHARGER. THE PERCEIVED OIL LEAK ACTUALLY MAY BE A NORMAL CHARACTERISTIC OF THE CLOSED POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM OR SOME OTHER UNIDENTIFIED CONDITION. THE PURPOSE OF THE CLOSED PCV SYSTEM IS TO KEEP HARMFUL BLOWBY GAS FROM ENTERING THE ATMOSPHERE. UNFORTUNATELY, BLOWBY GAS PRODUCTION AND AIR INTAKE DEMANDS DO NOT ALWAYS MATCH WHICH ALLOWS SOME OIL VAPOR FROM THE CRANKCASE TO ENTER THE INTAKE SYSTEM. AS A RESULT, THIS CONDITION MAY LEAD TO AN INCORRECT DIAGNOSIS. OIL IN THE INTAKE SYSTEM IS COMMON FOR A CLOSED PCV SYSTEM AND IS NOT A GOOD INDICATOR OF A TURBOCHARGER FAILURE. THE OIL SEAL INSIDE THE ISUZU TURBOCHARGER IS A DYNAMIC SEAL (NOT A RUBBER SEAL). AIR PRESSURE (I.E. BOOST PRESSURE) ON THE COMPRESSOR SIDE AND EXHAUST PRESSURE ON THE TURBINE SIDE KEEP THE LUBRICATING OIL INSIDE THE TURBOCHARGER CENTER HOUSING. A REDUCTION IN PRESSURE ON EITHER SIDE OF THE CENTER HOUSING WILL ALLOW OIL TO PASS INTO EITHER THE INTAKE OR THE EXHAUST SIDE OF THE TURBOCHARGER. IN ORDER TO STOP OIL FROM BYPASSING, THE SOURCE OF THE PRESSURE REDUCTION MUST BE LOCATED AND CORRECTED. THE MOST COMMON CAUSES OF THIS CONDITION ARE A RESTRICTED AIR FILTER, INCORRECT ENGINE OIL, LOOSE INTAKE HOSE CLAMPS, AND/OR EXCESSIVE CRANKCASE PRESSURE. IN ORDER TO BETTER SERVICE THE CUSTOMER AND HELP PREVENT THE UNNECESSARY REPLACEMENT OF UNDAMAGED TURBOCHARGERS, WE ARE PROVIDING THE FOLLOWING INSPECTION INFORMATION DESIGNED TO AID THE TECHNICIAN IN PROPERLY DIAGNOSING TURBOCHARGER CONCERNS.

10171726

IN AN EFFORT FOR CONTINUOUS IMPROVEMENT, ISUZU HAS A NEED TO OBTAIN MIMAMORI ECU (HEALTH REPORT) INFORMATION.

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IT IS CRITICAL TO OBTAIN MIMAMORI ECU INFORMATION DURING THE REPAIR PROCESS. THIS INFORMATION WILL BE USED BY ISUZU ENGINEERING TO HELP DETERMINE "ROOT CAUSE" FOR CUSTOMER'S CONCERNS AND DEVELOP/VALIDATE A FIELD FIX. ISUZU RECOGNIZES THAT THE SUCCESS OF GATHERING THIS MIMAMORI ECU INFORMATION IS DEPENDENT UPON THE DEALER TECHNICIAN. BECAUSE OF THIS NEED, ISUZU WILL COMPENSATE THE DEALER/TECHNICIAN FOR THEIR TIME AND EFFOR TO PROVIDE CRITICAL INFORMATION. WHEN A VEHICLE IS PRESENTED TO A DEALER FOR REPAIR AND A DTC IS STORED IN ONE OR MORE OF THE CONTROL MODULES LISTED BELOW, ISUZU ENGINEERING REQUESTS THE MIMAMORI ECU INFORMATION BE DOWNLOADED AND SYNCHRONIZED. IMPORTANT: PERFORM THE MIMAMORI ECU DOWNLOAD BEFORE CLEARING THE DTC AND BEFORE DIAGNOSING THE VEHICLE. BE SURE THE INFORMATION IS SYNCHRONIZED BEFORE CLAIM SUBMISSION. ISUZU ENGINEERING WILL BE REVIEWING ALL CLAIMS FOR THIS DATA. -ENGINE CONTROL MODULE (ECM) -TRANSMISSION CONTROL MODULE (TCM) -DIESEL EXHAUST FLUID (DEF) CONTROL MODULE

10170473

DIESEL ENGINES ISUZU COMMERCIAL TRUCK OF AMERICA IS PLEASED TO ANNOUNCE THE RELEASE OF OEM AND FLEET VALUE (FV)...

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ELECTRICAL WIRE CONNECTORS FOR CERTAIN ISUZU N-SERIES AND F-SERIES TRUCKS. IN SOME INSTANCES, THE ELECTRICAL CONNECTORS LISTED IN THIS BULLETIN CAN BE A COST-EFFECTIVE REPAIR ALTERNATIVE TO REPLACING AN ENTIRE WIRING HARNESS, THEREBY REDUCING THE OPERATING EXPENCE FOR YOUR CUSTOMERS. PLEASE SEE THE TABLE BELOW FOR DETAILS REGARDING THE ELECTRICAL CONNECTORS CURRENTLY AVAILABLE

10169621

SOME CUSTOMERS MAY EXPERIENCE ISSUES WITH OIL DRIPPING FROM THE AIR CLEANER OR AN OIL SOAKED FILTER ELEMENT, ALONG WITH...

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ILLUMINATED CHECK ENGINE (CEL) AND CHECK AIR FILTER WARNING LAMPS. THE PURPOSE OF THIS BULLETIN IS TO ANNOUNCE THE AVAILABILITY OF A NEW AIR INLET DUCT THAT WILL REDUCE THE PCV OIL REMNANTS ENTERING THE AIR CLEANER AND AN UPDATED DRAIN PLATE THAT WILL PREVENT GEAR TRAIN OIL SPLASH FROM ENTERING THE PCV SYSTEM. SEE THE SERVICE PROCEDURE IN THIS BULLEIN FOR PARTS AND INSTALLATION INFORMATION.

10167650

SOME CUSTOMERS WHOSE VEHICLES ARE OPERATED IN DUSTY TYPE ENVIRONMENTS, SUCH AS FARMING, SWEEPING, OR OFF-ROAD TYPE...

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APPLICATIONS, MAY COMMENT ABOUT THE ILLUMINATION OF THE CHECK ENGINE LIGHT, WITH ONE OR MORE OF THE FOLLOWING DTC'S SET: P0449 (EVAPORATIVE EMISSION VENT SOLENOID VALVE CONTROL CIRCUIT LOW VOLTAGE), P0446 (EVAPORATIVE EMISSION VENT SYSTEM PERFORMANCE) AND P0455 (EVAPORATIVE EMISSION SYSTEM LARGE LEAK DETECTED). DIRT AND DUST INTRUSION INTO THE EVAP CANISTER VENT SOLENOID VALVE MAY CAUSE THIS CONDITION. IF NORMAL DIAGNOSTICS FOR ANY OF THE ABOVE DTCS DETERMINES THE EVAPORATIVE EMISSION (EVAP) CANISTER VENT SOLENOID VALVE HAS FAILED, REPLACE THE EXISTING EVAP CANISTER VENT SOLENOID VALVE (THE "VALVE") WITH A NEW ASSEMBLY. THEN COVER THE VALVE AND RELOCATE IT WITH THE UPDATED PARTS USING THE SERVICE PROCEDURE IN THIS BULLENTIN. (SEE FIGURE 1.)

10164556

Damage to fuel systems, including to both low and high pressure components, often results from fuel contamination.

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Operating a vehicle?s diesel engine on fuels and additives that do not meet the vehicle manufacturer?s specifications for lubrication and cooling, or that have improper anti-corrosion properties, can cause drivability problems as well as component damage or even failure. Due to the tight tolerances on modern diesel engines, contaminants such as water can dilute the lubricating properties of diesel fuel and cause engine damage. For instance, water can lead to acid forming in the fuel system, which can be extremely caustic and harmful to the engine. Contamination of high pressure fuel system components may cause symptoms including, but not limited to, the following:

10164327

ISUZU COMMERCIAL TRUCK OF AMERICA IS PLEASED TO ANNOUNCE THE AVAILABILITY OF A FRONT FRAME MOUNTED HEATED FUEL...

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SEDIMENTER KIT FOR 2011MY-2017MY N-SERIES TRUCKS EQUIPPED WITH A 5.2L 4HK1 DIESEL ENGINE. INSTALLING THESE KITS CAN HELP MINIMIZE THE CHANCES OF FUEL FILTERS BECOMING CLOGGED DUE TO GELLING IN COLD WEATHER CONDITIONS. THE KIT PART NUMBER, ORDERING INFORMATION, AND INSTALLATION INSTRUCTIONS ARE IN THIS BULLETIN. THESE KITS ARE NOT DESIGNED FOR USE ON 2018 MY AND NEWER ISUZU TRUCKS.

10164324

UTILIMASTER WARRANTY APPROVAL AND REIMBURSEMENT EFFECTIVE JULY 15, 2019 ALL REQUESTS FOR WARRANTY AUTHORIZATION AND...

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REIMBURSEMENT MUST BE COMMUNICATED DIRECTLY TO UTILIMASTER. ALL ISUZU SUPPORT FOR THE UTILIMASTER WARRANTY PROCESS IN ICS WILL BE DISCONTINUED. PLEASE DIRECT ALL INQUIRIES FOR UTILIMASTER WARRANTY TO THE BELOW CONTACT INFORMATION. Utilimaster Corporation Attn: Warranty Department 603 Earthway Boulevard Bristol, IN 46507, U.S.A. E-MAIL: FVSWarranty@spartanmotors.com TEL: 1-800-237-7806 ? follow prompts FAX: 1-574-848-2809 IF YOUR DEALERSHIP HAS ANY OUTSTANDING CLAIMS FOR UTILIMASTER THAT SHOULD BE PROCESSED THROUGH ICS, THE SUBMISSION MUST BE COMPLETED NO LATER THAN JULY 14, 2019. ANY OUTSTANDING CLAIMS AFTER THIS DATE MUST BE DIRECTED TO UTILIMASTER DIRECTLY.

10162991

SOME CUSTOMERS MAY COMPLAIN OF AN ILLUMINATED CHECK ENGINE MALFUNCTION INDICATOR LIGHT (MIL) ASSOCIATED WITH DIAGNOSTIC...

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TROUBLE CODE (DTC) U0106, LOST COMMUNICATION WITH GLOW PLUG CONTROL MODULE (GPCM). THIS CONDITION MAY BE THE RESULT OF WATER INTRUSION INTO THE GPCM CONNECTOR. WATER FROM RAIN AND OTHER OUTSIDE SOURCES CAN POOL IN THE GLOW PLUG RECESSED AREA ON THE OUTSIDE OF THE CYLINDER HEAD. IF ENOUGH WATER ACCUMULATES, IT CAN SEEP INTO THE GLOW PLUG HARNESS THROUGH THE TERMINAL ENDS AND ENTER THE GPCM CONNECTOR, CAUSING THIS DTC TO SET. IF THIS DTC IS FOUND AND EVIDENCE OF WATER IS PRESENT IN THE GPCM CONNECTOR, REPLACE THE GLOW PLUG HARNESS TERMINALS AND REAR PANEL COVER AS OUTLINED IN THE SERVICE PROCEDURE IN THIS BULLETIN. THE REPLACEMENT TERMINAL ENDS ARE SEALED SO THAT WATER CANNOT GET INOT AND THROUGH THE WIRE.

10154107

SOME CUSTOMERS MAY EXPERIENCE ISSUES WITH OIL DRIPPING FROM THE AIR LEANER OR AN OIL SOAKED FILTER ELEMENT, ALONG WITH...

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ILLUMINATED CHECK ENGINE (CEL) AND CHECK AIR FILTER WARNING LAMPS. THE PURPOSE OF THIS BULLETIN IS TO ANNOUNCE THE AVAILABILITY OF A NEW AIR INLET DUCT THAT WILL REDUCE THE PCV OIL REMNANTS ENTERING THE AIR CLEANER AND AN UPDATED DRAIN PLATE THAT WILL PREVENT GEAR TRAIN OIL SPLASH FROM ENTERING THE PCV SYSTEM. SEE THE SERVICE PROCEDURE IN THIS BULLETIN FOR PARTS AND INSTALLATION INFORMATION.

10145200

IMPORTANT: EFFECTIVE JUNE 1, 2018 ? THE IQC PROCESS WILL BE TRANSFERRED TO ISUZU TECHNICAL ASSISTANCE.

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AS OF JUNE 1, 2018, PLEASE CONTACT THE ISUZU TECHNICAL ASSISTANCE LINE AT 1-877-ISUZUCV (1-877-478-9828), PROMPT 3, PRIOR TO REPLACING ENGINES OR TRANSMISSIONS THAT ARE BELIEVED TO BE COVERED BY THE ISUZU NEW VEHICLE WARRANTY, ISUZU PARTS WARRANTY, GOLD STAR USED TRUCK WARRANTY AND/OR ALL EXTENDED POWERTRAIN WARRANTIES OFFERED BY ISUZU AS WELL AS OVER-THE COUNTER ENGINE AND TRANSMISSION ASSEMBLY REPLACEMENTS.WE ASK YOU TO CALL THE TAL SO THAT WE MAY OBTAIN FASTER AND MORE ACCURATE QUALITY INFORMATION ON FAILED ENGINES AND TRANSMISSION ASSEMBLIES AND IMPROVE THE RELIABILITY OF OEM AND SERVICE REPLACEMENT ENGINE AND TRANSMISSION ASSEMBLIES.

10130289

ISUZU DIESEL ENGINES AVAILABLE IN THE ABOVE AFFECTED VEHICLES MEET THE CALIFORNIA AIR RESOURCE BOARD?S (CARB) OPTIONAL...

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IDLING EMISSIONS STANDARD OF 30 GRAMS PER HOUR OF OXIDES OF NITROGEN (NOX) WITH NO INCREASE IN THE EMISSION OF OTHER REGULATED POLLUTANTS. AS A RESULT THESE VEHICLES HAVE BEEN APPROVED AS ?CERTIFIED CLEAN IDLE? AND ARE ?EXEMPT? FROM THE ENGINE SHUTDOWN SYSTEM (ESS) REQUIREMENT PURSUANT TO SECTION 1956.8 OF TITLE 13, CALIFORNIA CODE OF REGULATIONS. AS REQUIRED BY THE ESS REGULATION, FOR ?CERTIFIED CLEAN IDLE? VEHICLES, ISUZU HAS INTRODUCED A TAMPER RESISTANCE ?CERTIFIED CLEAN IDLE? LABEL LOCATED ON THE DRIVER?S SIDE DOOR PANEL.

10130204

A new Isuzu oil filter is now available for 2011MY and newer Isuzu N-Series vehicles equipped with 4HK1 diesel engines.

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The new oil filter?s bypass valve pressure has been changed to improve filtration in cold weather. As a result it is necessary for dealers to inventory this new oil filter cartridges for the affected model years

10099064

ISUZU DIESEL ENGINES AVAILABLE IN THE ABOVE AFFECTED VEHICLES MEET THE CALIFORNIA AIR RESOURCE BOARDS (CARB) OPTIONAL...

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IDLING EMISSIONS STANDARD OF 30 GRAMS PER HOUR OF OXIDES OF NITROGEN (NOX) WITH NO INCREASE IN THE EMISSION OF OTHER REGULATED POLLUTANTS. AS A RESULT THESE VEHICLES HAVE BEEN APPROVED AS CERTIFIED CLEAN IDLE AND ARE EXEMPT FROM THE ENGINE SHUTDOWN SYSTEM (ESS) REQUIREMENT PURSUANT TO SECTION 1956.8 OF TITLE 13, CALIFORNIA CODE OF REGULATIONS. AS REQUIRED BY THE ESS REGULATION, FOR CERTIFIED CLEAN IDLE VEHICLES, ISUZU HAS INTRODUCED A TAMPER RESISTANCE CERTIFIED CLEAN IDLE LABEL LOCATED ON THE DRIVERS SIDE DOOR PANEL. IT IS IMPORTANT THAT THIS LABEL REMAIN, PERMANENTLY, ON THE VEHICLE TO IDENTIFY IT AS CERTIFIED CLEAN IDLE. CARB REQUIRES THIS LABEL AS EVIDENCE THAT, AT THE TIME OF MANUFACTURE, THE ENGINE INSTALLED MET THE APPLICABLE EMISSION STANDARDS. SHOULD THE LABEL BE FOUND MISSING OR DAMAGED DURING AN INSPECTION, A CITATION AND PENALTIES MAY BE ISSUED. IF THE VEHICLE IS OPERATED IN CALIFORNIA WITH A DAMAGED OR MISSING CLEAN IDLE LABEL, ISUZU RECOMMENDS VEHICLE OPERATORS FOLLOW THE 5 MINUTE ESS REQUIREMENT BY MANUALLY TURNING OFF THE ENGINE. FOLLOWING THIS ESS REQUIREMENT WILL KEEP THE VEHICLE OPERATION COMPLIANT UNTIL A REPLACEMENT LABEL CAN BE INSTALLED. CLEAN AIR IDLE LABELS ARE PRINTED WITH A SERIAL NUMBER AND REGISTERED TO AN INDIVIDUAL VIN. AS A RESULT, A REPLACEMENT LABEL WILL ALSO INCLUDE A NEW SERIAL NUMBER WHICH MUST BE REGISTERED TO THE VEHICLES VIN BY THE MANUFACTURER. THE BELOW INFORMATION IS PROVIDED TO ASSIST IN ACQUIRING, REPLACING AND REGISTERING A REPLACEMENT LABEL.

10096868

ISUZU HAS DEVELOPED NEW PARTS TO BE USED WHEN REPLACING THE DEF COOLANT PIPE ASSEMBLY ON N-SERIES VEHICLES EQUIPPED WITH THE 5.2L 4HK1 ENGINE.

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IN ORDER TO INSTALL A NEW DEF COOLANT PIPE ASSEMBLY PROPERLY, YOU MUST USE A NEW BRACKET AND A NEW CLIP.

10096863

THIS INFORMATION IS BEING ISSUED TO HELP DEALERS IDENTIFY A POTENTIAL SOURCE FOR FUEL CONTAMINATION.

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IF A CUSTOMERS COMPLAINT LEADS TO THE DISCOVERY OF CONTAMINATED FUEL, THE SOURCE OF THE CONTAMINATION MUST BE FOUND AND REPAIRED. CONTAMINATED FUEL MAY RESULT IN MANY DIFFERENT FAILURES. SOME EXAMPLES OF THESE FAILURES ARE: PLUGGED FUEL FILTERS, POOR ENGINE PERFORMANCE, CHECK ENGINE LIGHT ILLUMINATION, FUEL SYSTEM (LINES AND TANK) CORROSION (RUST), ETC ISUZUS FAILURE INVESTIGATIONS HAVE FOUND A COMMON OCCURRENCE OF THE FUEL FILLER NECK BEING INSTALLED INCORRECTLY. THIS POOR INSTALLATION WILL ALLOW UNWANTED MATERIAL TO ENTER THE FUEL TANK CONTAMINATING THE FUEL. USE THE INFORMATION BELOW TO CONFIRM THE FUEL FILLER NECK IS INSTALLED CORRECTLY. IF THE FILLER NECK INSTALLATION IS INCORRECT, USE THE INFORMATION BELOW TO REPAIR THE FUEL FILLER NECK.

10096860

IN AN EFFORT FOR CONTINUOUS IMPROVEMENT, ISUZU HAS A NEED TO OBTAIN MIMAMORI ECU (HEALTH REPORT) INFORMATION.

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IT IS CRITICAL TO OBTAIN MIMAMORI ECU INFORMATION DURING THE REPAIR PROCESS. THIS INFORMATION WILL BE USED BY ISUZU ENGINEERING TO HELP DETERMINE "ROOT CAUSE" FOR CUSTOMER'S CONCERNS AND DEVELOP/VALIDATE A FIELD FIX.

10083910

A NEW ISUZU OIL FILTER IS NOW AVAILABLE FOR 2011MY AND NEWER ISUZU N-SERIES VEHICLES EQUIPPED WITH 4HK1 DIESEL ENGINES.

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THE NEW OIL FILTERS BYPASS VALVE PRESSURE HAS BEEN CHANGED TO IMPROVE FILTRATION IN COLD WEATHER. AS A RESULT IT IS NECESSARY FOR DEALERS TO INVENTORY THIS NEW OIL FILTER CARTRIDGES FOR THE AFFECTED MODEL YEARS.

10081157

ON RARE OCCASIONS, A CRANK NO START MAY BE ENCOUNTERED ON A 6.0 V8 GAS ENGINE.

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DURING DIAGNOSIS, THE TECHNICIAN WILL FIND PROPER FUEL PRESSURE, SPARK FROM EACH SPARK PLUG WIRE, AND PROPER INJECTOR PULSE. HOWEVER, THE FOLLOWING CONCERNS WILL BE NOTED DURING THEIR DIAGNOSIS: LOW STATIC COMPRESSION, EXCESSIVE CYLINDER LEAKAGE PAST AN INTAKE OR EXHAUST VALVE, THE ENGINE MAY START BUT RUN POORLY IF THE CMP SENSOR IS DISCONNECTED, AND/OR THE VALVE TRAIN MAY NOT MOVE WHILE CRANKING THE ENGINE. THIS CONCERN MAY BE THE RESULT OF A SHEARED CAMSHAFT SPROCKET LOCATING PIN DUE TO THE CAMSHAFT SEIZING TO THE CAMSHAFT BEARINGS AT ONE TIME.

10081119

IF A CUSTOMERS COMPLAINT LEADS TO THE DISCOVERY OF CONTAMINATED FUEL, THE SOURCE OF THE CONTAMINATION MUST BE FOUND AND REPAIRED.

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CONTAMINATED FUEL MAY RESULT IN MANY DIFFERENT FAILURES. SOME EXAMPLES OF THESE FAILURES ARE: PLUGGED FUEL FILTERS, POOR ENGINE PERFORMANCE, CHECK ENGINE LIGHT ILLUMINATION, FUEL SYSTEM (LINES AND TANK) CORROSION (RUST), ETC ISUZUS FAILURE INVESTIGATIONS HAVE FOUND A COMMON OCCURRENCE OF THE FUEL FILLER NECK BEING INSTALLED INCORRECTLY. THIS POOR INSTALLATION WILL ALLOW UNWANTED MATERIAL TO ENTER THE FUEL TANK CONTAMINATING THE FUEL.

10055253

ISUZU: INFORMATION CONCERNING THE TURBOCHARGER INSPECTION.

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A COMMON OCCURRENCE OF TURBOCHARGES BEING REPLACED FOR INTERNAL OIL LEAKS. RESULTS SHOW THAT THERE IS NO FAULT WITH THE TURBOCHARGER. THE PERCEIVED OIL LEAK ACTUALLY MAY BE A NORMAL CHARACTERISTIC OF THE CLOSED POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM OR SOME OTHER UNIDENTIFIED CONDITION. APPLIES TO MAKE: ISUZU MODEL: N-SERIES MODEL YEAR: 2011-2015. *JS

10052183

ISUZU: A CRACK MAY HAVE DEVELOPED IN THE VACUUM HOSE FOR TURBOCHARGER VACUUM SWITCHING VALVE CAUSING ILLUMINATION OF...

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CHECK ENGINE MALFUNCTION INDICATOR. MODELS 2011-2012 N SERIES. *PE UPDATED 8/21/13. *PE

10050119

ISUZU: DUE TO DTC FOUND, HARNESS CONNECTORS FOR CORROSION, POOR CONNECTION, DAMAGE SHOULD BE INSPECTED FOR CAUSE OF LOW...

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DIESEL EXHAUST FLUID (DEF) LIGHT AND CHECK ENGINE LIGHT. MODELS 2011-2013 N SERIES. *PE

10044328

ISUZU: THE ENGINE CONTROL MODULE (ECM) MAY CAUSE A MALFUNCTION IN THE INDICATOR LAMP TO ILLUMINATE.

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THE CALIBRATIONS AND LATEST SOFTWARE FOR ECM NEEDS TO BE REPROGRAM. MODEL N SERIES. MODEL YEARS 2011-1012 *PE

10044167

ISUZU: EXPERIENCING REDUCED ENGINE VEHICLE SPEED AND CHECK ENGINE MALFUNCTION INDICATOR LIGHT ILLUMINATED.

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*PE

10044166

ISUZU (GMC, CHEVROLET): DIESEL ENGINES EQUIPPED WITH EGR COOLER WAS DIAGNOSE FOR LEAKS WITH AN EGR COOLER TESTER CONSISTING OF PRESSURE REGULATOR.

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MODELS ISUZU N SERIES-2005-2015, GMC/CHEVROLET W SERIES 2005-10, ISUZU F SERIES 2007-09 AND GMC/CHEVROLET T AND C SERIES 2007-09. *PE UPDATED 04/29/2014 *JS

Fuel System

18 bulletins
11013601

INFORMATION BULLETIN: SOME CUSTOMERS WITH N-SERIES VEHICLES MAY NOTICE AN AUDIBLE CLICKING OR CHATTERING NOISE COMING...

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FROM THE REAR OF THE VEHICLE WHILE MAKING TIGHT TURNS. THIS CONDITION MAY BE DUE TO LIMITED SLIP DIFFERENTIAL LUBRICANT ADDITIVE NOT HAVING BEEN USED DURING THE LAST SCHEDULED MAINTENANCE OR IN A PREVIOUS REPAIR. THE CONDITION CAN ALSO RESULT FROM DELAYED OR SKIPPED MAINTENANCE RESULTING IN DEGRADATION OF AXLE FLUID. IF A CUSTOMER BRINGS AN AFFECTED VEHICLE IN AND COMPLAINS OF OR DESCRIBES THIS CONDITION, FOLLOW THE SERVICE PROCEDURE.

11005686

INFORMATION BULLETIN _SOME CUSTOMERS WITH N-SERIES VEHICLES MAY NOTICE AN AUDIBLE CLICKING OR CHATTERING NOISE COMING...

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FROM THE REAR OF THE VEHICLE WHILE MAKING TIGHT TURNS. THIS CONDITION MAY BE DUE TO LIMITED SLIP DIFFERENTIAL LUBRICANT ADDITIVE NOT HAVING BEEN USED DURING THE LAST SCHEDULED MAINTENANCE OR IN A PREVIOUS REPAIR. THE CONDITION CAN ALSO RESULT FROM DELAYED OR SKIPPED MAINTENANCE RESULTING IN DEGRADATION OF AXLE FLUID.

10238685

IDA is a diagnostic program that provides: 1.

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DTC Analysis 2. DPF Early Regeneration Warning Detailed instructions on how to use the IDA are included in this bulletin.

10222330

Some customers with N-series vehicles may notice an audible clicking or chattering noise coming from the rear of the vehicle while making tight turns.

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This condition may be due to incorrect axle fluid having been used during the last scheduled maintenance or in a previous repair. The condition can also result from delayed or skipped maintenance resulting in degradation of axle fluid.

10204470

DIESEL PARTICULATE FILTER.

10187495

RECENTLY, THE ESSENTIAL TOOLS - DPF INJECTOR CLEANING KIT (EN-52575), INJECTOR CLEANER ACCESSORY KING (EN-52575-50), AND...

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INJECTOR SEAL INSTALLER AND SIZER (J-46911) - WERE SHIPPED TO ISUZU DEALERS. ISUZU HAS DEVEOPED A PROCEDURE TO REMOVE THE CARBON BUILDUP FROM THE DPF FUEL INJECTOR TIP AND TO MAINTAIN THE INJECTOR PERFORMANCE LEVEL. THESE ESSENTIAL TOOLS ARE: KIT 1 - AN ULTRASONIC CLEANING MACHINE, AND SUPPORT RACK (SEE FIGURE 1), KIT 2 - A STAND WITH BASE, ARM WITH CLAMP, BRASS BRISTLE BRUSH, AND PYREX BEAKER (SEE FIGURE 2), AND KIT 3 - AN INJECTOR SEAL PROTECTOR, SEAL PUSHER AND SEAL SIZER (SEE FIGURE 3). DPF INJECTOR CLEANING KIT EN-52575, DPF INJECTOR CLEANER ACCESSORY KIT EN-52575-50, AND INJECTOR SEAL INSTALLER AND SIZER J-46911 COMBINE TO MAKE A COMPLETE KIT FOR CLEANING. THE ESSENTIAL TOOLS ARE USED ON A BENCH TOP (SEE FIGURES 1, 2, & 3). REFER TO THE APPROPRIATE SERVICE MANUAL FOR INFORMATION ON WHEN AND HOW TO PERFORM THE DPF INJECTOR CLEANING PROCEDURE.

10172506

IDA IS A PILOT DIAGNOSTIC PROGRAM THAT PROVIDES TWO FUNCTIONS: 1) DTC ANALYSIS 2) DPF EARLY REGENERATION WARNING IT...

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IS VITAL FOR ISUZU TO BE ABLE TO EVALUATE THE PERFORMANCE OF THIS PILOT TOOL. THEREFORE, IDA ALSO INCLUDES A FEADBACK PROCESS. THE FEEDBACK PROVIDED DURING THE PILOT PROGRAM WILL DEMONSTRATE IDA'S LEVEL OF EFFECTIVENESS AND ALSO HELP IMPROVE THE IDA PROGRAM. COMPLETING THE FEEDBACK PORTION OF THE IDA PROCESS AFTER REPAIRING A VEHICLE IS AN INTEGRAL PART OF UTILIZING IDA AND MUST BE DONE FOR EACH IDA SUGGESTED REPAIR. THE PILOT PROGRAM'S INITIAL ONE YEAR PERIOD HAS BEEN EXTEDED. PLEASE CONTINUE UTILIZING IDA AS MUCH AS POSSIBLE UNTIL FURTHER NOTICE. ISUZU COMMERCIAL TRUCK OF AMERICA (ICTA) IS REQUESTING ISUZU DEALERS TO USE IDA FOR ALL DTC-RELATED REPAIRS ON VEHICLES THAT ARE STILL UNDER WARRANTY. WHEN MAKING A REPAIR SUGGESTED BY IDA, PLEASE PRINT A COPY OF THE IDA-SUGGESTED REPAIR AND ATTACH IT TO THE REPAIR ORDER. IF THE IDA RECOMMENDATION DOES NOT REPAIR THE VEHICLE, ICTA WILL REIMBURSE THE DEALER FOR PERFORMING THE SUGGESTED REPAIR. COMPLETE THE FEEDBACK PROCESS WITHIN IDA BEFORE SUBMITTING A CLAIM. SUBMIT ALL DOCUMENTATION WITH THE CLAIM. FAILURE TO PROVIDE DETAILS WILL DELAY CLAIM PAYMENTS. NOTE: DO NOT USE IDA ON VEHICLES THAT ARE "OUT OF WARRANTY"

10154199

RECENTLY, THE ESSENTIAL TOOLS-DPF INJECTOR CLEANING KIT (EN-52575), INJECTOR CLEANER ACCESSORY KIT (EN-52575-50), AND...

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INJECTOR SEAL INSTALLER AND SIZER (J-46911)--WERE SHIPPED TO ISUZU DEALERS. ISUZU HAS DEVELOPED A PROCEDURE TO REMOVE THE CARBON BUILDUP FROM THE DPF FUEL INJECTOR TIP AND TO MAINTAIN THE INJECTOR PERFORMANCE LEVEL. THESE ESSENTIAL TOOLS ARE: KIT 1-AN ULTRASONIC CLEANING MACHINE, AND SUPPORT RACK (SEE FIGURE 1), KIT 2-A STAND WITH BASE, ARM WITH CLAMP, BRASS BRISTLE BRUSH, AND PYREX BEAKER (SEE FIGURE 2), AND KIT 3-AN INJECTOR SEAL PRTECTOR, SEAL PUSHER AND SEAL SIZER (SEE FIGURE 3). DPF INJECTOR CLEANING KIT EN-52575, DPF INJECTOR CLEANER ACCESSORY KIT EN-525750-50, AND INJECTOR SEAL INSTALLER AND SIZER J-46911 COMBINE TO MAKE A COMPLETE KIT FOR CLEANING. THE ESSENTIAL TOOLS ARE USED ON A BENCH TOP (SEE FIGURES 1, 2, & 3). REFER TO THE APPROPRIATE SERVICE MANUAL FOR INFORMATION ON WHEN AND HOW TO PERFORM THE DPF INJECTOR CLEANING PROCEDURE.

10130290

THIS BULLETIN IS BEING ISSUED TO INFORM DEALERS OF DIESEL PARTICULATE FILTER (DPF) CLEANING RECOMMENDATIONS, INSPECTION...

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PRACTICES, AND RECOMMENDED R&R PROCEDURES FOR SERVICE AND CLEANING SYSTEM AVAILABILITY.

10096865

SOME CUSTOMERS OF N-SERIES VEHICLES MAY COMPLAIN OF AN AUDIBLE CLICKING OR CHATTERING NOISE COMING FROM THE REAR OF THE...

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VEHICLE WHILE MAKING TIGHT TURNS. THIS CONDITION MAY BE DUE TO INCORRECT AXLE FLUID INSTALLED AT THE LAST SCHEDULED MAINTENANCE OR DURING A PREVIOUS REPAIR. THE CONDITION CAN ALSO RESULT FROM DELAYED OR SKIPPED MAINTENANCE RESULTING IN DEGRADATION OF AXLE FLUID.

10083906

SOME CUSTOMERS OF N-SERIES VEHICLES MAY COMPLAIN OF AN AUDIBLE CLICKING OR CHATTERING NOISE COMING FROM THE REAR OF THE...

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VEHICLE WHILE MAKING TIGHT TURNS. THIS CONDITION MAY BE DUE TO INCORRECT AXLE FLUID INSTALLED AT THE LAST SCHEDULED MAINTENANCE OR DURING A PREVIOUS REPAIR. THE CONDITION CAN ALSO RESULT FROM DELAYED OR SKIPPED MAINTENANCE RESULTING IN DEGRADATION OF AXLE FLUID.

10083725

SOME CUSTOMERS OF N-SERIES VEHICLES MAY COMPLAIN OF AN AUDIBLE CLICKING OR CHATTERING NOISE COMING FROM THE REAR OF THE...

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VEHICLE WHILE MAKING TIGHT TURNS. THIS CONDITION MAY BE DUE TO INCORRECT AXLE FLUID INSTALLED AT THE LAST SCHEDULED MAINTENANCE OR DURING A PREVIOUS REPAIR. THE CONDITION CAN ALSO RESULT FROM DELAYED OR SKIPPED MAINTENANCE RESULTING IN DEGRADATION OF AXLE FLUID.

10083650

PROPER INSTALLATION OF THE FUEL INJECTOR PIPES INTO A LONG BLOCK ASSEMBLY.

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THE FUEL INJECTION PIPES SHOULD BE INSTALLED ONTO THE NEW LONG BLOCK ASSEMBLY AFTER FIRST INSTALLING THE COMMON RAIL. WHEN INSTALLING THE FUEL INJECTION PIPES, FOLLOW THE PROCEDURE BELOW TO ENSURE PROPER MATING OF THE FUEL INJECTOR HIGH PRESSURE INLET, AND THE FUEL INJECTION PIPES.

10058043

ISUZU 2007-2015 MY ISUZU N-SERIES: IN EXTREME COLD WEATHER, THERE'S NO CRANK/NO START, NO FUEL PRESSURE/ FUEL PUMP INOPERATION.

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*LJ

10055255

ISUZU: INFORMATION CONCERNING EXHAUSTS LEAKS, LOSS OF COOLANT OR OVER HEATING CONDITION AFTER A RECENT REPAIR TO ONE OR BOTH EGR COOLERS.

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APPPLIES TO 2007 - 2010 CHENVROLET OR GMC W3500/W4500/W5500, 2007 - 2015 ISUZU NPR/NPRHD/NQR/NRR, 2007 CHEVROLET OR GMC C6500/C7500/C8500, 2007 CHEVROLET OR GMC T6500/T7500/T8500, 2007 ISUZU FTR/FVR/FXR, AND 2007 ISUZU HTR/HVR/HXR. *JS

10055254

ISUZU: INFORMATION CONCERNING THE INSTALLATION OF THE FUEL INJECTOR PIPES INTO A LONG BLOCK ASSEMBLY.

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1999 - 2002 ISUZU FSR/FTR/FVR, 1999 - 2009 CHEVROLET OR GMC T6500/T7500/T8500, 2000 - 2004 CHEVROLET OR GMC WT5500, 2000 - 2004 ISUZU FRR, 2003 - 2009 CHEVROLET OR GMC C6500/C7500/C8500, 2004 - 2009 ISUZU FTR/FVR/FXR, 2005 - 2007 ISUZU HTR/HVR/HXR, 2005 - 2010 CHEVROLET OR GMC W3500/W4500/W5500, 2005 - 2015 ISUZU NPR/NPRHD/NQR/NRR, AND 2013 - 2014 ISUZU NPR. *JS

10055206

ISUZU: MOST PUMP FAILURES ARE DUE TO DEBRIS CAUSING A STICK/SEIZING CONDITION OF THE INTERNAL CONTROL MECHANISM.

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IMPROVED FUEL FILTER KITS WERE DEVELOPED. ALSO INCLUDED MAKE: ISUZU/ MODEL: N-SERIES/ MODEL YEAR: 2014. *JS

10039125

ISUZU: THERE IS FUEL CONTAMINATION AND IT COULD BE CAUSED BY AN IMPROPERLY INSTALLED FUEL FILLER NECK.

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2011-2012 N SERIES. *RM

Electrical

8 bulletins
11034607

INFORMATION BULLETIN: THE INFORMATION SET FORTH IN THIS BULLETIN IS INTENDED TO AID TECHNICIANS IN PROPERLY TESTING THE...

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BATTERIES AND ALTERNATORS IN THE AFFECTED ISUZU VEHICLES. IT IS IMPORTANT TO CONFIRM THE BATTERY IS IN GOOD CONDITION PRIOR TO DIAGNOSIS OF THE ALTERNATOR AND CHARGING SYSTEM. NEVER REPLACE AN ALTERNATOR BEFORE TESTING THE BATTERYS CONDITION.

11012615

INFORMATION BULLETIN: THE INFORMATION SET FORTH IN THIS BULLETIN IS INTENDED TO AID TECHNICIANS IN PROPERLY TESTING THE...

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BATTERIES AND ALTERNATORS IN THE AFFECTED ISUZU VEHICLES. IT IS IMPORTANT TO CONFIRM THE BATTERY IS IN GOOD CONDITION PRIOR TO DIAGNOSIS OF THE ALTERNATOR AND CHARGING SYSTEM. NEVER REPLACE AN ALTERNATOR BEFORE TESTING THE BATTERYS CONDITION. BATTERIES MUST BE FULLY CHARGED FOR THE ECM AND/OR STARTER RELAY TO FULLY ENGAGE WITH THE STARTER. IF THE BATTERY VOLTAGE IS LOW, THE ECM WILL NOT ENGAGE OR MAY PARTIALLY ENGAGE THE STARTER. REPLACE THE ALTERNATOR ONLY IF IT FAILS THE ON VEHICLE TESTING PROCEDURE.

10201566

In an effort for continuous improvement, Isuzu has a need to obtain Mimamori ECU

10162988

IDA IS A PILOT DIAGNOSTIC PROGRAM WHICH ANALYZES DTCS (CURRENTLY 29) AND PROVIDES QUICK AND EASY TO UNDERSTAND REPAIR SOLUTIONS.

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UTILIZING DATA CAPTURED DURING AN ISUZU MIMAMORI ECU (HEALTH REPORT) DOWNLOAD AND ACCESSIBLE FROM www.IsuzuTruckService.com, ISUZU DEALER TECHNICIANS WILL BE ABLE TO CLICK THE IDA TAB AND THE ANALYZED DTCS FOR THEIR DEALERSHIPS. EACH ANALYZED DTC WILL HAVE A RECOMMENDED REPAIR OR PROCEDURE. DETAILED INSTRUCTIONS FOR USING IDA ARE INCLUDED IN THIS BULLETIN.

10154108

THE DUAL FUEL TANK CONTROL MODULE AND WIRING HARNESS ASSEMBLY PREVIOUSLY SUPPLIED BY AIPDN AS REPLACEMENT PARTS FOR THE...

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TRAX II DUAL FUEL TANK OPTION ARE NO LONGER AVAILABLE. IF EITHER ONE OF THESE COMPONENTS REQUIRES REPLACEMENT THE ENTIRE SYSTEM MUST BE CONVERTED TO A NEW TRAX 3 CONFIGURATION. THIS BULLETIN PROVIDES THE INSTALLATION PROCEDURE AND THE REPLACEMENT PART NUMBERS FOR THE PARTS NEEDED FOR THE CONVERSION TO THE TRAX 3 CONFIGURATION. FOR REPAIRS THAT ARE STILL COVERED BY THE MANUFACTURER WARRANTY, CLAIM SUBMISSION INFORMATION IS ALSO PROVIDED. TO CONFIRM INSTALLATION IS COMPLETED CORRECTLY AND THE SYSTEM IS OPERATING NORMALLY, PERFORM THE SYSTEM TEST AT THE END OF THIS BULLETIN USING SPECIAL TOL NUMBER EN-53585 TRAX 3 AUXILIARY FUEL SYSTEM DIAGNOSTIC MODULE.

10145202

IDA IS A PILOT DIAGNOSTIC PROGRAM WHICH ANALYZES DTCS (CURRENTLY 29) AND PROVIDES QUICK AND EASY TO UNDERSTAND REPAIR SOLUTIONS.

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UTILIZING DATA CAPTURED DURING AN ISUZU MIMAMORI ECU (HEALTH REPORT) DOWNLOAD AND ACCESSIBLE FROM WWW.ISUZUTRUCKSERVICE.COM, ISUZU DEALER TECHNICIANS WILL BE ABLE TO CLICK THE IDA TAB AND THE ANALYZED DTCS FOR THEIR DEALERSHIPS. EACH ANALYZED DTC WILL HAVE A RECOMMENDED REPAIR OR PROCEDURE. DETAILED INSTRUCTIONS FOR USING IDA ARE INCLUDED IN THIS BULLETIN.

10083907

AN INVESTIGATION OF RETURNED NUMBER 1 AND 2 EGT SENSORS TO THE WARRANTY PARTS CENTER HAS IDENTIFIED A COMMON OCCURRENCE...

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OF SENSORS BEING REPLACED WITH NO TROUBLE FOUND (NTF). IN ORDER TO BETTER SERVICE THE CUSTOMER AND STOP THE UNNECESSARY REPLACEMENT OF THESE SENSORS, ISUZU HAS PROVIDED THE FOLLOWING INSPECTION INFORMATION TO AID THE TECHNICIAN IN PROPERLY DIAGNOSING EGT SENSORS 1 AND 2.

10054544

ISUZU: SOME VEHICLES MAY EXPERIENCE A NO CRANK, NO START, NO TOOL COMMUNICATION CONDITION IN EXTREMELY COLD WEATHER SITUATIONS.

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THIS FAILURE MAY BE CAUSED BY A STUCK ECM MAIN RELAY (X-30). ALSO INCLUDED MODEL N-SERIES MODEL YEAR 2014-2015. *JS UPDATED 04/23/2014 *JS UPDATED 11/14/14. *PE

Body & Paint

8 bulletins
10225521

We have received reports of the front turn signal lenses cracking on Isuzu vehicles.

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These lenses are cracking from the effects of being washed with alkaline detergents. Alkaline detergents are typically used in industrial settings and are reactive with the paint, metals, and other materials used to make up the exterior components of Isuzu vehicles. Isuzu recommends that only neutral detergents be used when washing Isuzu vehicles. However, if alkaline detergents are used to wash an Isuzu vehicle, it is crucial that all traces of the detergent are rinsed away with water or wiped off as necessary. Allowing alkaline detergent to dry on the turn signal lenses will cause them to crack. Each Isuzu vehicle is originally equipped with an Owner's Manual that includes guidelines for the proper exterior maintenance of the vehicle. The following guidelines are typical of those found in an Isuzu Owner's Manual concerning the use of detergents on a vehicle's exterior.

10209883

Some customers may complain about wind noise and/or water intrusion into the cab from the driver and/or passenger doors...

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of the affected N-Series and FTR trucks. To correct this condition Isuzu Commercial Truck of America, Inc. (ITCA) is offering a new door weather strip to improve sealing of the driver and passenger doors.

10186931

SOME CUSTOMERS MAY COMPLAIN ABOUT WIND NOISE AND/OR WATER INTRUSION INTO THE CAB FROM THE DRIVER AND/OR PASSENGER DOORS...

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OF THE AFFECTED N-SERIES AND FTR TRUCKS. TO CORRECT THIS CONDITION ISUZU COMMERCIAL TRUCK OF AMERICA, INC. (ITCA) IS OFFERING A NEW DOOR WEATHER STRIP TO IMPROVE SEALING OF THE DRIVER AND PASSENTER DOORS.

10176679

SOME CUSTOMERS MAY COMPLAIN ABOUT WIND NOISE AND/OR WATER INTRUSION INTO THE CAB FROM THE DRIVER AND/OR PASSENGER DOORS...

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OF THE AFFECTED N-SERIES AND FTR TRUCKS. TO CORRECT THIS CONDITION ISUZU COMMERCIAL TRUCK OF AMERICA, INC. (ICTA) IS OFFERING A NEW DOOR WEATHER STRIP TO IMPROVE SEALNG OF THE DRIVER AND PASSENGER DOORS.

10167647

SOME CUSTOMERS MAY COMPLAIND ABOUT WIND NOISE AND/OR WATER INTRUSION INTO THE CAB FROM THE DRIVER AND/OR PASSENGER DOORS...

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OF THE AFFECTED N-SERIES AND FTR TRUCKS. TO CORRECT THIS CONDITION ISUZU COMMERCIAL TRUCK OF AMERICA, INC (ITCA) IS OFFERING A NEW DOOR WEATHER STRIP TO IMPROVE SEALING OF THE DRIVER AND PASSENGER DOORS.

10081158

SOME CUSTOMERS MAY COMPLAIN ABOUT WIND NOISE AND/OR WATER INTRUSION INTO THE CAB FROM THE DRIVER AND/OR PASSENGER DOORS...

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OF THE SINGLE CAB N-SERIES TRUCK. TO CORRECT THIS CONDITION ISUZU IS OFFERING A NEW DOOR WEATHER STRIP TO IMPROVE SEALING OF THE DRIVER AND PASSENGER DOORS FOR SINGLE CAB TRUCKS.

10056373

ISUZU: INFORMATION REGARDING CORROSION INHIBITOR IMPROVEMENT THAT CHANGES COLOR OF COOLANT TO A DARK COLOR AND IS ADDED...

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AT PORT TO BOTH RADIATOR AND SURGE TANK. *PE

10053488

ISUZU: INSTALLATION OF A THREE BOND 1215 PART IS RECOMMENDED WHEN INSTALLING THE KINGPIN SEALING PLUG.

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*KB

Transmission

7 bulletins
11011556

THIS INFORMATION BULLETIN OUTLINES THE SERVICE PROCEDURE FOR INSTALLATION OF FLUID LEVEL INDICATOR JOINT TUBE ANYTIME...

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THE AISIN TRANSMISSION IS REMOVED OR OIL PAN IS REMOVED AND REINSTALLED TO PREVENT WATER INTRUSION TO TRANSMISSION.

10210794

In response to requests from the field and in an effort to reduce repair costs of Aisin A465 6-speed transmission, the...

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following On-Vehicle procedures have been approved for service at the dealer level. The following procedures have been approved for repair. Refer to the Automatic Transmission sub-section Internal Harness (Wire to Solenoid) section in the appropriate Service Manual for diagnostic and service procedures. In order to improve the quality of the original equipment manufacturer (OEM) and service replacement parts, Isuzu now requests dealers to capture TCM Freeze Frame Data for all Aisin A465 6-speed transmission component parts replaced under warranty. The primary purpose of the TCM Freeze Frame Data is to obtain faster and more accurate quality information on all Aisin A465 6-speed transmission replaced components. The collected information will be used to improve the reliability of OEM and service replacement transmission components.

10207648

In response to requests from the field and in an effort to reduce repair costs of the Aisin A465 6-speed transmission,...

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the following On-Vehicle procedures have been approved for service at the dealer level. The following procedures have been approved for repair. Refer to the Automatic Transmission sub-section Internal Harness (Wire to Solenoid) section in the appropriate Service Manual for diagnostic and service procedures. In order to improve the quality of the original equipment manufacturer (OEM) and service replacement parts, Isuzu now requests dealers to capture TCM Freeze Frame Data for all Aisin A465 6-speed transmission component parts replaced under warranty. The primary purpose of the TCM Freeze Frame Data is to obtain faster and more accurate quality information on all Aisin A465 6-speed transmission replaced components. The collected information will be used to improve the reliability of OEM and service replacement transmission components.

10083903

AN INVESTIGATION OF INHIBITOR SWITCHES (REPLACED FOR DTC P0707) RETURNED TO THE WARRANTY PARTS CENTER HAS IDENTIFIED A...

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HIGH FREQUENCY OF SWITCHES BEING REPLACED WITH NO TROUBLE FOUND (NTF). THE MOST LIKELY ROOT CAUSES OF THE P0707 DTC ARE AN OPEN F-18 FUSE OR A STRETCHED AND/OR IMPROPERLY ADJUSTED SHIFT CABLE. IN ORDER TO BETTER SERVICE THE CUSTOMER AND TO STOP THE UNNECESSARY REPLACEMENT OF INHIBITOR SWITCHES, ISUZU RECOMMENDS TECHNICIANS TO FIRST CHECK THE F-18 FUSE, THEN CHECK, AND IF NECESSARY, ADJUST THE SHIFT CABLE BEFORE DIAGNOSING DTC P0707. THE SHIFT CABLE ADJUSTMENT PROCEDURE IS PROVIDED BELOW FOR YOUR REFERENCE. IF ADDITIONAL INFORMATION IS REQUIRED, REFER TO THE APPROPRIATE SERVICE MANUAL.

10056381

ISUZU: REPROGRAMMING TRANSMISSION CONTROL MODULE (TCM), WITH REVISED CALIBRATIONS, DUE TO ILLUMINATION OF CHECK...

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TRANSMISSION LAMP, WILL PREVENT UNNECESSARY REPLACEMENT OR REPAIRS TO AISIN 6 SPEED AUTOMATIC TRANSMISSION. MODEL 2007-13 N SERIES, W SERIES. *PE

10053489

ISUZU: THERE IS A PROBLEM WITH THE AUTOMATIC TRANSMISSION FILTER CRACKING OR SPLITTING.

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TRANSMISSION MAY EXPERIENCE NO FORWARD/NO REVERSE MOVEMENT OR THE TRANSMISSION MAY BE SLIPPING. *KB

10050139

ISUZU: DUE TO INSECT NESTING AND/OR DEBRIS LEFT BY FLOODING, FLUID IS LEAKING AT TOP OF AUTOMATIC TRANSMISSION...

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DIPSTICK TUBE, AND A NEW BREATHER HOSE VENT WAS DESIGNED TO REDUCE THIS CONDITION. MODELS 2007-2012 N SERIES, 2007-2010 W SERIES. *PE

Pre-Delivery & Maintenance

6 bulletins
10218932

Isuzu Commercial Truck of America, Inc.

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(ICTA) is providing the following procedural recommendations to improve dealer efficiency when submitting Parts Warranty claims. We strongly recommend dealers follow these procedures in order to avoid delays in Parts Warranty claim payments and/or claim chargeback. This bulletin was revised to add a Parts Warranty Form

10218927

Isuzu Commercial Truck of America, Inc.

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(ICTA) is providing the following procedural recommendations to improve dealer efficiency when submitting Parts Warranty claims. We strongly recommend dealers follow these procedures in order to avoid delays in Parts Warranty claim payments and/or claim chargeback.

10217004

The Isuzu Commercial Truck of America (ICTA) Service Technical Assistance Center (TAC) provides diagnostic support to...

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Isuzu dealer technicians repairing Isuzu vehicles in and out of vehicle warranty. A TAC case number will be issued solely for information tracking purposes and future contact reference.

10206061

Isuzu Commercial Truck of America, Inc.

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is proud to introduce the redesigned Isuzu Vehicle Health Report (VHR) program. Beginning October 2021, Isuzu dealers are able to access, through www.isuzutruckservice.com, all of the Isuzu Vehicle Health Report Data (MMU Data) associated with 2011MY and newer vehicles serviced by their dealership in a new, user friendly VHR. Look for the VHR tab after you log in. n contrast to the previous design, the new VHR exists in a central database easily accessed by dealership personnel at any time from any PC with internet access. Users will be able to quickly select vehicles by entering a VIN (partial or all 17 digits) or select from a list of the VINs most recently downloaded by their dealership to create a VHR.

10177769

EFFECTIVE JULY 15, 2019 ALL REQUEST FOR WARRANTY AUTHORIZATION AND REIMBURSEMENT MUST BE COMMUNICATED DIRECTLY TO UTILIMASTER.

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ALL ISUZU SUPPORT FOR THE ULTIMASTER WARRANTY PROCESS IN ICS WILL BE DISCONTINUED. PLEASE DIRECT ALL INQUIRIES FOR UTILIMASTER WARRANTY TO THE BELOW CONTACT INFORMATION UTILIMASTER CORPORATION ATTN: WARRANTY DEPARTMENT 603 EARTHWAY BOULEVARD BRISTOL, IN 46507, U.S.A. E-MAIL: FVSWARRANTY@UTILIMASTER.COM TEL: 1-800-237-7806 - FOLLOW PROMPTS FAX: 1-574-848-2809 IF YOUR DEALERSHIP HAS ANY OUTSTANDING CLAIMS FOR UTILIMASTER THAT SHOULD BE PROCESSED THROUGH ICS, THE SUBMISSION MUST BE COMPLETED NO LATER THAN JULY 14, 2019. ANY OUTSTANDING CLAIMS AFTER THIS DATE MUST BE DIRECTED TO UTILIMASTER DIRECTLY.

10099067

IF THE CURRENT DIAGNOSTIC CALLS FOR THE SUPPLY PUMP TO BE REPLACED, PLEASE PERFORM THE INSPECTION PROCEDURES OUTLINED IN THIS BULLETIN.

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THE PURPOSE OF THE INSPECTION PROCEDURE OUTLINED IN THIS BULLETIN IS TO PREVENT FAILURES RESULTING FROM INCOMPLETE INSPECTIONS CONDUCTED FOLLOWING A DIAGNOSIS CALLING FOR SUPPLY PUMP REPLACEMENT.

Other

5 bulletins
10217001

The following is a list of the Isuzu-recommended Threebond product part numbers identified in the various Isuzu Workshop Manuals and bulletins.

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If a Threebond product is unavailable, we recommend that you utilize the chart below to find equivalent of similar products (when available) from Loctite and Permatex.

10188520

Instrument clusters now supplied with mileage programmed.

10174034

SOME CUSTOMERS MAY EXPERIENCE A "CRANK NO START" CONDITION IN THE VEHICLES LISTED ABOVE.

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THE FOLLOWING DIAGNOSIS MIGHT BE HELPFUL IF THE VEHICLE EXHIBITS THE SYMPTOM(S) DESCRIBED IN THIS INFORMATION BULLETIN.

10145198

AIPDN IS PLEASED TO ANNOUNCE THE AVAILABILITY OF INSTRUMENT CLUSTERS PROGRAMMED WITH THE VEHICLE?S MILEAGE FOR 2011MY TO...

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CURRENT ISUZU N-SERIES VEHICLES.

10096864

THE VEHICLE KEY HAS BEEN IMPROVED IN THE ABOVE AFFECTED VEHICLES.

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THE KEY DESIGN IS MORE ROBUST AND THE NUMBER OF CUTS IN THE KEY HAS BEEN INCREASED. AS A RESULT, IMPORTANT INFORMATION IS PROVIDED IN THIS BULLETIN TO ASSIST DEALERS AND CUSTOMERS IN CREATING REPLACEMENT KEYS WHEN NECESSARY. THE PART NUMBER, EQUIPMENT AND KEY NUMBER CONVERSION INFORMATION ARE LISTED BELOW:

Infotainment

4 bulletins
10237146

This bulletin outlines the procedures for using the Alpine Exchange Program (the "Exchange Program").

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The Exchange Program must be used when any Alpine radio or other component covered by this bulletin is repaired under warranty and may also be used for radio and component repairs not covered under warranty. Contact Alpine directly for pricing and payment methods applicable to radio and component repairs not covered under warranty.

10209890

This bulletin outlines the procedures for using the Alpine Exchange Program (the "Exchange Program").

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The Exchange Program must be used when any Alpine radio covered by this bulletin is repaired under warranty and may also be used for radio repairs not covered under warranty. Contact Alpine directly for pricing and payment methods applicable to radio repairs not covered under warranty.

10168058

ISUZU N-SERIES TRUCKS EQUIPPED WITH OPTIONAL ISUZU-AUTHORIZED ALPINE BLUETOOTH RADIO (RPO CODES I8H, I1V, OR I2V) THIS...

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BULLETIN OUTLINES THE PROCEDURES FOR USING THE ALPINE EXCHANGE PROGRAM (THE "EXHANGE PROGRAM"). THE EXCHANGE PROGRAM MUST BE USED WHEN ANY ALPINE RADIO COVERED BY THIS BULLETIN IS REPAIRED UNDER WARRANTY AND MAY ALSO BE USED FOR RADIO REPAIRS NOT COVERED UNDER WARRANTY. CONTACT ALPINE DIRCTLY FOR PRICING AND PAYMENT METHODS APPLICABLE TO RADIO REPAIRS NOT COVERED UNDER WARRANTY.

10084170

SOME CUSTOMERS MAY COMPLAIN THAT THE DEF TANK SIGHT TUBE AND DEF LEVEL GAUGE IN THE MID (MULTI INFORMATION DISPLAY) DO NOT MATCH.

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THE DEF TANK SIGHT TUBE IS USED FOR FILLING PURPOSES ONLY IN ORDER TO PREVENT OVERFILLING. ACTUAL DEF LEVEL SHOULD ONLY BE DETERMINED BY VIEWING THE DEF LEVEL GAUGE IN THE MID.

Suspension

4 bulletins
10078908

IN SOME 2012-2016MY ISUZU STRIPPED CHASSIS (REACH VANS) AND 2011-2016MY NPR-HD DIESEL TRUCKS, THE ORIGINAL...

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FACTORY-INSTALLED GREASE IN THE FRONT WHEEL BEARINGS MAY DEGRADE UNDER CERTAIN CIRCUMSTANCES. IF LEFT UNATTENDED, THE FRONT WHEEL BEARINGS COULD EVENTUALLY SEIZE OR LOOSEN. TYPICALLY THIS CONDITION IS PRECEDED BY A NOTICEABLE GROWLING NOISE AND CAN BE AVOIDED WITH TIMELY SERVICING OF THE FRONT WHEEL BEARINGS.

10078906

IN SOME 2012-2016MY ISUZU STRIPPED CHASSIS (REACH VANS) AND 2011-2016MY NPR-HD DIESEL TRUCKS, THE ORIGINAL...

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FACTORY-INSTALLED GREASE IN THE FRONT WHEEL BEARINGS MAY DEGRADE UNDER CERTAIN CIRCUMSTANCES. IF LEFT UNATTENDED, THE FRONT WHEEL BEARINGS COULD EVENTUALLY SEIZE OR LOOSEN. TYPICALLY THIS CONDITION IS PRECEDED BY A NOTICEABLE GROWLING NOISE AND CAN BE AVOIDED WITH TIMELY SERVICING OF THE FRONT WHEEL BEARINGS.

10078904

IN SOME 2012-2016MY ISUZU STRIPPED CHASSIS (REACH VANS) AND 2011-2016MY NPR-HD DIESEL TRUCKS, THE ORIGINAL...

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FACTORY-INSTALLED GREASE IN THE FRONT WHEEL BEARINGS MAY DEGRADE UNDER CERTAIN CIRCUMSTANCES. IF LEFT UNATTENDED, THE FRONT WHEEL BEARINGS COULD EVENTUALLY SEIZE OR LOOSEN. TYPICALLY THIS CONDITION IS PRECEDED BY A NOTICEABLE GROWLING NOISE AND CAN BE AVOIDED WITH TIMELY SERVICING OF THE FRONT WHEEL BEARINGS.

10078901

IN SOME 2012-2016MY ISUZU STRIPPED CHASSIS (REACH VANS) AND 2011-2016MY NPR-HD DIESEL TRUCKS, THE ORIGINAL...

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FACTORY-INSTALLED GREASE IN THE FRONT WHEEL BEARINGS MAY DEGRADE UNDER CERTAIN CIRCUMSTANCES. IF LEFT UNATTENDED, THE FRONT WHEEL BEARINGS COULD EVENTUALLY SEIZE OR LOOSEN. TYPICALLY THIS CONDITION IS PRECEDED BY A NOTICEABLE GROWLING NOISE AND CAN BE AVOIDED WITH TIMELY SERVICING OF THE FRONT WHEEL BEARINGS.

Lighting

2 bulletins
11011551

THIS INFORMATION BULLETIN IS TO REMIND DEALERS WHENEVER THE IPC ASSEMBLY IS REPLACED IN AN AFFECTED ISUZU MANUFACTURED...

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VEHICLE, THEY ARE TO AFFIX AN ODOMETER REPLACEMENT STICKER, AS THE ODOMETER IS NOT PROGRAMMABLE. THE STICKER SHOULD BE FILLED OUT COMPLETELY WITH THE DATE OF REPLACEMENT ALONG WITH THE MILEAGE FROM THE PREVIOUS ODOMETER READING, AND THE DEALER CODE OF THE DEALERSHIP REPLACING THE IPC.

10244941

This bulletin provides information with regards to the Isuzu Commercial Vehicle (CV) Service Policies and Procedures Manual (SPPM).

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The Isuzu CV SPPM (sections 2.15 and 2.16) provides detailed procedures related to vehicle storage up to and beyond 30 days. Performing these required procedures at the specified intervals will properly maintain vehicles until they are retailed. Failure to follow the procedures outlined may result in repairs and additional costs that could have been avoided. We are providing dealers with this brief overview of the recommended procedures as a reminder to maintain older inventory. Failures resulting from improper, or lack of, storage procedures are not covered under the vehicle factory warranty.

Software & Calibration

1 bulletin
10203308

This bulletin supersedes information bulletin IB18-X-001C.

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The purpose of this bulletin is to update affected model years. Please discard previous bulletin IB18-x-001c. ISUZU DTC ANALYZER (IDA) ? PILOT PROGRAM INTRODUCTION

Steering

1 bulletin
10053487

ISUZU: MAINENANCE AND LUBRICATION REMINDER OF THE FRONT AXLE KINGPIN.

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THIS IS IMPORTANT FOR THE STEERING SYSTEM. *KB