2009 Kenworth W900 TSBs
31 Technical Service Bulletins across 10 categories
Categories
Engine
11 bulletinsKENWORTH: OIL COLLECTION AT CAC INTAKE PIPE IS CAUSED BY AN IMBALANCE IN TURBOCHARGER PRESSURES.
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MODELS T660, T800, T700, AND W900. *PE
KENWORTH: REGARDING UPDATE INFORMATION FOR ENGINE BRAKE AND THROTTLE PEDAL POSITION RETURN RANGE, WHICH WAS TOO NARROW...
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TO ENGAGE AND ENGINE BRAKE WAS NOT ENGAGING. *PE
KENWORTH: ENGINE CONTROL UNIT (ECU), IDENTIFIED AS PMCI IN ENGINE RAPIDO, SHOULD HAVE A PROTECTIVE SHIELD FOR SOFTWARE...
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UPDATES AND THE HC DOSER FITTING INSTALLED FOR AFTER AFTERTREATMENT CONTROL UNIT. *PE
KENWORTH: FOR CERTAIN TRUCKS, THE ENGINE CONTROL UNIT (ECU), IDENTIFIED AS PMCI IN ENGINE RAPIDO, AND AFTERTREATMENT...
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CONTROL UNIT WILL BENEFIT FROM SOFTWARE UPDATES. *PE
KENWORTH: POWER STEERING PUMP SPOOL VALVE DOES NOT MEET QUALITY STANDARDS.
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THERE MAY BE A LACK OF STEERING ASSIST OR HARD STEERING AT IDLE. *RM
PACCAR SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.
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THERE HAVE BEEN UPDATES TO THE ENGINE SOFTWARE. *RM
PACCAR: ENGINEERING STANDARDS HAVE CHANGED AND THERE ARE NOW ENGINES WITH HEAT TREATED BOLTS.
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*RM
PACCAR: A SOFTWARE UPDATE IS CAUSING THE CHECK ENGINE LIGHT TO COME ON.
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*RM
PACCAR: A COOLANT SIEVE MUST BE REMOVED AT THE FIRST ENGINE OIL CHANGE.
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*RM
KENWORTH (PACCAR): CAMPAIGN TO INSPECT FOR MISSING EXHAUST GASKETS.
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CHASSIS LISTED MAY HAVE BEEN MANUFACTURED WITHOUT AN UPPER EXHAUST PIPE GASKET. EQUIPPED WITH PACCAR MX ENGINES ONLY. *PE
CATERPILLAR C15 OR CUMMINS ISX ENGINES EXPERIENCING PREMATURE FAILURE OF THE FAN HUB BEARINGS.
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*KB
Electrical
7 bulletinsInformation Only: This bulletin provides dealers with a battery warranty quick reference guide to ensure the...
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appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplete information.
Information Only Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead...
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to water intrusion and corrosion in some vehicles.
Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.
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BULLETIN REFERS TO THE DUAL EXHAUST REAR NOX SENSOR MOISTURE PROTECTION CAMPAIGN. TO DIVERT MOISTURE FROM THE REAR (SCR OUTLET) NOX SENSOR THERE IS A NEW DESIGN FOR EXHAUST ELEMENT. *PE
KENWORTH: INFORMATION REGARDING REAR NOX SENSOR REPAIRS SHOULD INCLUDE SYSTEM UPDATES FOR CHASSIS OPERATING IN...
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CONDITIONS WHICH RESULT IN MOISTURE RELATED SENSOR FAILURES WITH IMPROVED MOISTURE PROTECTION EXHAUST DESIGN FOR REAR NOX SENSOR. *PE
PACCAR: WATER MAY SEEP BETWEEN THE WIRE INSULATION AND POTTING OF THE FUEL SENSOR.
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THERE MAY BE AN ERRATIC FALSE WARNING OF WATER IN FUEL. *RM
KENWORTH SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.
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THE ODOMETER MAY INACCURATELY RECORD MILEAGE. THE FOG LAMP CIRCUIT MAY NOT WORK WITH THE INSIDE SWITCH. SOME CHASSIS HAVE INACCURATE CHASSIS WEIGHT ON THE DOOR LABEL. *RM
Transmission
3 bulletinsPACCAR: INFORMATION ON PREMATURE FAN CLUTCH LINING WEAR.
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*RM
KENWORTH TRUCK SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.
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THE OIL SLINGER THREADS ON INPUT SHAFTS OF IDENTIFIED 10 SPEED TRANSMISSION WERE MACHINED INCORRECTLY. THIS DEFECT WILL CREATE A SLOW FLUID LEAK AT THE INPUT SHAFT TO TRANSMISSION INTERFACE. CSC LETTER WAS REC'D. *PE
KENWORTH TRUCK SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.
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TRANSMISSION DRIVER INSTRUCTIONS MANUAL CAMPAIGN. THE WRONG EATON TRANSMISSION DRIVER INSTRUCTIONS MANUAL MAY HAVE BEEN DELIVERED WITH IDENTIFIED CHASSIS. *PE
Other
2 bulletins"Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes.
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2 chassis added to the chassis list. Peterbilt: Dealers should check the chassis list and SIR weekly for VIN changes. 10 chassis added to the chassis list."
KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.
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THE ORIGINAL STYLE OIL FILTER CAP SYSTEM IS BEING REPLACED BY AN IMPROVED OIL FILTER CAP LOCK SYSTEM. *PE
Lighting
2 bulletinsKENWORTH: SOME TRUCKS FAILED TO MEET COMPANY STANDARDS FOR AIR VOLUME LIFT AXLE AND THE COMPANY WILL INCREASE AIR...
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VOLUME FOR WORTHWHILE IMPROVEMENT TO EXCEED GOVERNMENT FMVSS 121. MODEL T800, W900. *PE
PACCAR: THE CHASSIS NEEDS TO HAVE PRODUCTION PARTS INSTALLED AND PRE-PRODUCTION PARTS REMOVED.
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*RM
Fuel System
2 bulletinsKENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.
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LINE FATIGUE FAILURE MAY BE DUE TO EXCESSIVE VIBRATIONS OF HIGH PRESSURE FUEL LINES AND DIESEL FUEL LEAK AND MALFUNCTION INDICATOR LAMP. *PE
PACCAR SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.
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SOME KENWORTH VEHICLES ARE MISSING AN EMISSIONS COMPLIANCE LABEL. *RM
Brakes
1 bulletinCertain C500/T440/T470/T660/T680/T800/T880/W900 chassis may have air tank reservoirs that do not meet air volume...
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requirements per FMVSS/CMVSS 121 Air Brake Systems. This bulletin will be updated when repair parts and procedures are available.
Body & Paint
1 bulletinInformation Only Windshield washer pumps have a high No Trouble Found rate.
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Washer pumps may fail to spray due to a clogged filter.
HVAC & Climate
1 bulletinInformation Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the...
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A/C compressor.
Suspension
1 bulletinPACCAR: INFORMATION ON FAN HUB BEARINGS INSPECTION AND WARRANTY EXTENSION DUE TO A HIGHER THAN NORMAL FAILURE RATE.
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*RM