2010 Isuzu N Series TSBs

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.

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.

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.

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.

-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.

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.

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

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:

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.

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.

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.

AND A LACK OF POWER DUE TO POSSIBLE OPERATION CONDITION OF SUCTION CONTROL VALVE (SCV)/FUEL RAIL PRESSURE (FRP) REGULATOR BEING INTERMITTENT. MODELS 2004-2010 CHEVROLET/GMC C, T, W SERIES AND ISUZU F, H, N SERIES. *PE

DURING THE PROCESS ASSEMBLY OF TURBOCHARGER ENGINE, THE HOUSING BECAME LOOSE CAUSING MALFUNCTION INDICATOR LAMP TO ILLUMINATE AND OPERATION OF VEHICLE REVERT TO LIMP HOME MODE. MODELS 2007-2010 ISUZU N SERIES AND GMC/CHEVROLET W SERIES. *PE UPDATED 12/10/12. *PE

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

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THERE IS AN IMPROPERLY INSTALLED CLAMP PROBLEM. *RM

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MODELS EQUIPPED WITH DIESEL PARTICULATE FILLER (DPF) AND WHOLESALED BEFORE 12/03/09, WERE BUILT WITH AN INCORRECT ENGINE OIL DIPSTICK CALIBRATION. THE INCORRECT CALIBRATION CAUSES AN OVERFILLED CONDITION OF APPROXIMATELY 1.5QTS WHEN AT THE FULL MARK. *PE

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. *PE UPDATED 7/9/13. *PE

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

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.

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.

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.

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

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

THE ABS/TRANSMISSION/MALFUNCTION LIGHTS MAY BE ON. WATER INTRUSION IN WIRING HARNESSES MAY BE CAUSING THE PROBLEM. *RM

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

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.

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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

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

SOME RETURNED FUEL INJECTORS HAS IDENTIFIED AN OCCURRENCE OF INJECTOR MALFUNCTION DUE TO FUEL CONTAMINATION. IT HAS BEEN DETERMINED THAT MANY OF THESE INJECTOR FAILURES ARE A RESULT OF FUEL DEBRIS CAUSING A STICKING/SEIZING CONDITION OF THE INTERNAL INJECTOR CONTROL MECHANISM. *PE UPDATED 7/8/11. *PE

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 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.

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.

TECHNICIAN SHOULD TURN OFF THE IGNITION AND CANCEL RETAINED ACCESSORY POWER. AFTER THE VEHICLE HAS POWERED DOWN REMOVE POWER TO THE ONSTAR MODULE FOR FIVE MINUTES. AFTER THE POWER HAS BEEN REMOVED FOR FIVE MINUTES, IF THE ONSTAR SYSTEM IS WORKING RELEASE THE VEHICLE. IF THE ONSTAR SYSTEM IS STILL INOPERATIVE CONTINUE WITH PUBLISHED SERVICE INFORMATION DIAGNOSTICS.

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.

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

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.

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.

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.

(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

(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.

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.

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.

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:

AT PORT TO BOTH RADIATOR AND SURGE TANK. *PE

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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.

This bulletin provides instructions with regard to the Isuzu Commercial Vehicle (CV) Warranty Parts Center on the topics of parts retention, parts preparation for shipping, and administration.

THIS IS IMPORTANT FOR THE STEERING SYSTEM. *KB