2011 KENWORTH T660
13 recalls, 2 complaints - 60 TSBs
24V145000 Feb 23, 2024
SERVICE BRAKES, AIR:SUPPLY:RESERVOIR/TANK
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2009-2021 Kenworth C500, 2012-2021 Kenworth T440, 2009-2015 Kenworth T660, 2015-2024 Kenworth T680, 2009-2024 Kenworth T800, 2009-2020 Kenworth T370, 2014-2023 Kenworth T880, 2011-2016 Kenworth T470, 2023 Kenworth T480, and 2009-2019 Kenworth W900 ve... Read more
Consequence
Insufficient air volume can reduce braking performance and increase the risk of a crash.
Remedy
Dealers will install the correct volume air tanks, free of charge. Owner notification letters were mailed August 12, 2024. Additional owner notification letters were mailed October 27, 2025. Owners may contact PACCAR customer service at 1-425-828-5888. PACCAR's number for this recall is 24KWD.
20V199000 Apr 6, 2020
SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2008-2019 Peterbilt 330, 335, 337, 340, 348, 365, 367, 384, 386, 387, 388, 389, 567, 579 and 587 vehicles and 2008-2020 Kenworth T170, T270, T370, T660, T680, T800, T880, and W900 vehicles equipped with NAMUX Software. In the event that the Anti-lo... Read more
Consequence
If the driver unknowingly operates the vehicle without the ABS functioning, there would be an increased risk of a crash.
Remedy
PACCAR will notify owners, and dealers will update the NAMUX software within the cab control module, free of charge. PACCAR issued owners an interim notification on June 4, 2020. The recall began May 26, 2020. Owners may contact Kenworth customer service at 1-425-828-5888 or Peterbilt customer se... Read more
15V458000 Jul 22, 2015
EXTERIOR LIGHTING:HEADLIGHTS
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain model year 2011-2016 Kenworth T440, T470, T660, T680, and T880 trucks manufactured January 14, 2010, to May 22, 2015, and equipped with HID Headlamps and the option for Daytime Running Lamps (DRL). The DRLs are required to deactivate when the hazard... Read more
Consequence
If the hazard warning lamps are overridden by the DRL, oncoming vehicles may fail to be warned, increasing the risk of a crash.
Remedy
Kenworth will notify owners, and dealers will update the cab controller software, free of charge. The recall began on September 167, 2015. Owners may contact Kenworth customer service at 1-425-828-5000. Kenworth's number for this recall is 15KWL.
15V271000 May 8, 2015
VISIBILITY:WINDSHIELD WIPER/WASHER:MOTOR
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain model year 2011-2016 Kenworth T270, T370, T440, T470, C500, C540, C550, T660, T800, W900, and 963 trucks manufactured November 1, 2010, to April 6, 2015. In the affected trucks, water may leak into the wiper motor.
Consequence
As water leaks in, the wiper may cease to function on the 'intermittent' setting, reducing the driver's visibility and increasing the risk of a crash. Additionally, the water may cause corrosion which, over time, may result in an electrical short, increasing the risk of a fire.
Remedy
PACCAR is still developing and testing a remedy. The recall is expected to begin in July 2015. An interim letter was sent to owners on July 2, 2015. The recall began on September 2, 1015. Owners may contact Kenworth customer service at 1-425-828-5000. PACCAR's number for this recall is 15KWF.
11V380000 Jul 21, 2011
ELECTRICAL SYSTEM:SOFTWARE
Defect Description
PACCAR IS RECALLING CERTAIN MODEL YEAR 2011-2012 KENWORTH T660, T700, AND T800 VEHICLES MANUFACTURED FROM APRIL 19, 2010, THROUGH MAY 13, 2011, AND MODEL YEAR 2008, 2010, AND 2011 PETERBILT 365, 367, 384, 386, 387, 388 AND 587 VEHICLES MANUFACTURED FROM APRIL 20, 2010, THROUGH JUNE 11, 2011, AND EQU... Read more
Consequence
IF THE FAST IDLE CONTROL FUNCTION IS ENGAGED WITH THE TRANSMISSION IN GEAR, THE VEHICLE COULD UNEXPECTEDLY ACCELERATE AND OVERRIDE THE PARKING BRAKE AND , CREATING A RISK OF A CRASH AND DAMAGE TO OTHER VEHICLES OR PROPERTY AND THE POTENTIAL FOR INJURY TO NEARBY PEDESTRIANS.
Remedy
KENWORTH AND PETERBILT DEALERS WILL UPDATE THE ENGINE SOFTWARE FOR THE AFFECTED CHASSIS. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON AUGUST 22, 2011. OWNERS MAY CONTACT KENWORTH AT 1-425-828-5440 AND PETERBILT AT 1-940-591-4196.
11V203000 Mar 24, 2011
ENGINE AND ENGINE COOLING
Defect Description
PACCAR IS RECALLING CERTAIN MODEL YEAR 2007-2011 KENWORTH C500, T2000, T600, AND T660, AS WELL AS MODEL YEAR 2009-2011 PETERBILT 387 AND 388 TRUCKS EQUIPPED WITH CATERPILLAR C15 ENGINE AND MANUFACTURED FROM MAY 11, 2006, THROUGH SEPTEMBER 17, 2010. DEGRADATION OF A COMBUSTION TUBE WELD CAN CAUSE ... Read more
Consequence
THIS COULD RESULT IN A FIRE.
Remedy
CATERPILLAR IS HANDLING THE OWNER NOTIFICATION AND REMEDY FOR THIS CAMPAIGN. PLEASE SEE CATERPILLAR'S DEFECT REPORT 11E-006. CATERPILLAR WILL REPLACE THE SINGLE PIECE COMBUSTION TUBE WITH A THICK WALL COMBUSTION TUBE WHICH WILL NOT ALLOW THE HEAT TO BREAK THROUGH. THIS SERVICE WILL BE PERFORMED FR... Read more
11V157000 Mar 7, 2011
SERVICE BRAKES, AIR:SLACK ADJUSTERS
Defect Description
PACCAR IS RECALLING CERTAIN MODEL YEAR 2011-2012 KENWORTH T270/370, T440/T470, T800, T660, W900 AND C500 VEHICLES MANUFACTURED BETWEEN OCTOBER 18, 2010, AND JANUARY 28, 2011. CERTAIN CAST IRON SLACK ADJUSTER HOUSINGS, WHICH TRANSMIT BRAKING FORCE FROM THE BRAKE CHAMBER PUSH ROD TO THE BRAKE CAM TUB... Read more
Consequence
IF THE SLACK ADJUSTER HOUSING WERE TO FRACTURE, THE WHEEL BRAKE TO WHICH THE SLACK ADJUSTER HOUSING IS ATTACHED WOULD NO LONGER FUNCTION, WHICH COULD INCREASE VEHICLE STOPPING DISTANCES, AND IF MOUNTED ON THE STEER AXLE, COULD CAUSE THE VEHICLE TO PULL TO ONE SIDE DURING BRAKING, INCREASING THE RISK... Read more
Remedy
DEALERS WILL INSPECT AND REPLACE THE SLACK ADJUSTER HOUSING AS NECESSARY. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON MARCH 30, 2011. OWNERS MAY CONTACT KENWORTH AT 425-828-5440.
11V127000 Feb 23, 2011
FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY
Defect Description
PACCAR IS RECALLING CERTAIN MODEL YEAR 2008-2012 KENWORTH T2000, T660, T700, T800, AND W900, AS WELL AS MODEL YEAR 2009-2012 PETERBILT 365, 367, 384, 386, 387, 388, 389, AND 587 TRUCKS EQUIPPED WITH PACCAR MX ENGINES. THE OIL MODULE CENTRIFUGAL SPINNER FILTER CAP IN THE PACCAR MX ENGINE MAY BECOME ... Read more
Consequence
THE DISCHARGE OF ENGINE OIL ONTO EXHAUST COMPONENTS WHICH ARE HOT, SUCH AS WHEN THE ENGINE IS UNDER SIGNIFICANT LOAD, MAY CAUSE A FIRE.
Remedy
DEALERS WILL RE-TORQUE THE OIL MODULE FILTER CAP AND INSTALL A SECONDARY RETENTION DEVICE ON THE SECONDARY CENTRIFUGAL SPINNER FILTER CAP. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL IS EXPECTED TO BEGIN DURING MARCH 2011. OWNERS MAY CONTACT KENWORTH AT 1-425-828-5440 AND PET... Read more
10V654000 Dec 22, 2010
LATCHES/LOCKS/LINKAGES:HOOD:LATCH
Defect Description
KENWORTH IS RECALLING CERTAIN MODEL YEAR 2011 T660 AND T700 TRACTOR TRAILERS MANUFACTURED BETWEEN AUGUST 9, 2010, AND NOVEMBER 4, 2010. THE SAFETY LATCH FEATURE THAT KEEPS THE HOOD OF THE VEHICLE FROM CLOSING AFTER A USER OPENS THE HOOD MAY FAIL TO OPERATE.
Consequence
FAILURE OF THE SAFETY LATCH FEATURE MAY CAUSE THE HOOD TO UNEXPECTEDLY CLOSE WHILE OPEN, INCREASING THE RISK OF PERSONAL INJURY AND/OR VEHICLE DAMAGE.
Remedy
DEALERS WILL REPLACE THE DUAL MAGNETS WITH A SINGLE MAGNET ON THE SAFETY LATCH. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON FEBRUARY 28, 2011. OWNERS MAY CONTACT KENWORTH AT 1-425-828-5440.
10V601000 Nov 24, 2010
EQUIPMENT:OTHER:LABELS
Defect Description
PACCAR IS RECALLING CERTAIN MODEL YEAR KENWORTH T660 AND T800 VEHICLES MANUFACTURED FROM SEPTEMBER 13, 2010, THROUGH NOVEMBER 19, 2010, FOR FAILING TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. PART 567, "CERTIFICATION." THE STEER AXLE GAWR AND GVWR RECORDED ON THE VE... Read more
Consequence
THIS MAY LEAD TO AN OWNER OVERLOADING THE VEHICLE WHICH CAN INCREASE THE RISK OF A TIRE FAILURE AND CRASH.
Remedy
DEALERS WILL INSPECT AND REPLACE THE DOOR LABELS FREE OF CHARGE. THE SAFETY RECALL BEGAN ON DECEMBER 17, 2010. OWNERS MAY CONTACT KENWORTH AT 425-828-5440.
10V535000 Oct 27, 2010
SERVICE BRAKES, AIR:DISC:CALIPER
Defect Description
PACCAR IS RECALLING CERTAIN MODEL YEAR KENWORTH T660, T700, T800 AND W900 VEHICLES MANUFACTURED FROM DECEMBER 22, 2008, THROUGH AUGUST 2, 2010, AND EQUIPPED WITH AG400L AIR DISC BRAKES. THE AIR DISC BRAKE CALIPER COULD BE INSTALLED ON THE WRONG SIDE OF THE DRIVE AXLE POTENTIALLY CAUSING INTERFERENC... Read more
Consequence
AS THIS INTERFERENCE GETS LARGER, THIS COULD EVENTUALLY LEAD TO REDUCED BRAKING PERFORMANCE, INCREASING THE RISK OF A CRASH.
Remedy
DEALERS WILL VERIFY THE CORRECT ORIENTATION OF THE BRAKE CALIPER AND PERFORM THE NECESSARY REPAIR FREE OF CHARGE. THE SAFETY RECALL BEGAN ON NOVEMBER 24, 2010. OWNERS MAY CONTACT KENWORTH AT 425-828-5440.
10V453000 Oct 1, 2010
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)
Defect Description
PACCAR IS RECALLING CERTAIN MODEL YEAR KENWORTH AND PETERBILT VEHICLES. A MANUFACTURING DEFECT IN THE SEAL SUPPLIED BY A COMPONENT MANUFACTURER INSTALLED ON THE OUTPUT SHAFT OF THE EXHAUST GAS RECIRCULATION (EGR) VALVE ACTUATOR MAY CAUSE EVENTUAL DELAMINATION OF THE SEAL. DELAMINATION OF THE SEAL ... Read more
Consequence
THE LEAKING OF ENGINE OIL ONTO HOT EXHAUST COMPONENTS, SUCH AS WHEN THE ENGINE IS UNDER SIGNIFICANT LOAD, MAY CREATE THE POSSIBILITY OF A FIRE.
Remedy
DEALERS WILL REPLACE THE EGR VALVE ASSEMBLY ON THE SUBJECT VEHICLES EQUIPPED WITH THE PACCAR MX ENGINE. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON OCTOBER 29, 2010. OWNERS MAY CONTACT KENWORTH AT 425-828-5440 AND PETERBILT AT 940-591-4196.
10V452000 Sep 29, 2010
EXTERIOR LIGHTING
Defect Description
KENWORTH IS RECALLING CERTAIN MODEL YEAR 2011 T660, T800, W900, C500, T440, AND T470 VEHICLES MANUFACTURED FROM APRIL 1, 2009, THROUGH AUGUST 30, 2010. ONE OF THE FOUR HARNESS SPADE TERMINAL CONNECTIONS TO THE CHASSIS LOAD CENTER MAY BECOME COMPLETELY UNSEATED. A COMPLETELY UNSEATED CONNECTION MAY... Read more
Consequence
POWER LOSS OF THE VEHICLE'S EXTERIOR LIGHTING MAY REDUCE THE VISIBILITY OF THE VEHICLE TO OTHER DRIVERS INCREASING THE RISK OF A CRASH WITH THE VEHICLE.
Remedy
DEALERS WILL INSPECT THE HARNESS AND RE-SEATING THE FEMALE CONNECTORS ON THE MALE SPADE TERMINALS. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON OCTOBER 29, 2010. OWNERS MAY CONTACT KENWORTH AT 1-425-828-5440.
Complaint Statistics
2 total complaints
Top Reported Components
| Component | Complaints |
|---|---|
| SERVICE BRAKES | 1 |
| UNKNOWN OR OTHER | 1 |
SERVICE BRAKES
Sep 24, 2013
Incident date: Sep 17, 2013
DURING PRE-TRIP INSPECTION, SERVICE BRAKE CHECK FAILED, TOOK TO LONG TO BUILD UP AIR PRESSURE, ULTIMATELY, THE SYSTEM WOULD NOT REGISTER ANY AIR PRESSURE BY GAUGE OR PHYSICALLY.[XXXX], [XXXX] *JS INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
UNKNOWN OR OTHER
Sep 24, 2013
Incident date: Sep 17, 2013
DURING PRE-TRIP INSPECTION, SERVICE BRAKE CHECK FAILED, TOOK TO LONG TO BUILD UP AIR PRESSURE, ULTIMATELY, THE SYSTEM WOULD NOT REGISTER ANY AIR PRESSURE BY GAUGE OR PHYSICALLY.[XXXX], [XXXX] *JS INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Technical Service Bulletins, 2011 KENWORTH T660
60 manufacturer communications from 44 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.
Most Affected Components
| Component | Bulletins |
|---|---|
| 118000 ELECTRICAL SYSTEM:SOFTWARE | 9 |
| 060000 ENGINE (PWS) | 5 |
| 061000 ENGINE AND ENGINE COOLING:ENGINE | 4 |
| 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM | 4 |
| 091200 FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM | 3 |
| 350000 EQUIPMENT | 3 |
| 061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL | 3 |
| 062200 ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN | 2 |
24KWD
Apr 9, 2024
040000 SERVICE BRAKES, AIR
Certain C500/T440/T470/T660/T680/T800/T880/W900 chassis may have air tank reservoirs that do not meet air volume requirements per FMVSS/CMVSS 121 ??A?A?Air Brake Systems??A?A?. This bulletin will be updated when repair parts and procedur
02-160
Feb 10, 2021
356000 EQUIPMENT ADAPTIVE/MOBILITY
Information Only a?? Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
02-160
Feb 10, 2021
350000 EQUIPMENT
Information Only a?? Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
02-160
Feb 10, 2021
136000 VISIBILITY:WINDSHIELD WIPER/WASHER
Information Only a?? Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
02-160
Feb 10, 2021
130000 VISIBILITY
Information Only a?? Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
32-015
Jun 8, 2020
110000 ELECTRICAL SYSTEM
Information Only: This bulletin provides dealers with a battery warranty quick reference guide to ensure the appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplet
32-016
Mar 17, 2020
350000 EQUIPMENT
Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
34-085
Mar 3, 2020
180000 VEHICLE SPEED CONTROL
Information Only a?? Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead to water intrusion and corrosion in some vehicles.
34-085
Mar 3, 2020
110000 ELECTRICAL SYSTEM
Information Only a?? Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead to water intrusion and corrosion in some vehicles.
03-071
Dec 18, 2019
118000 ELECTRICAL SYSTEM:SOFTWARE
Information Only - Vehicles built with NAMUX software from 2013 to present may experience accuracy issues with the tachometer. The issue can be temporarily resolved using any one of the included procedures.
01-075
Nov 6, 2019
060000 ENGINE AND ENGINE COOLING
Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor.
TIB43-062
Sep 27, 2019
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
Information Only ??A?A? This bulletin provides information about the California Air Resources Board (CARB) Periodic Smoke Inspection Program (PSIP) and Heavy Duty Vehicle Inspection Program (HDVIP).
TIB43-062
Sep 27, 2019
350000 EQUIPMENT
Information Only ??A?A? This bulletin provides information about the California Air Resources Board (CARB) Periodic Smoke Inspection Program (PSIP) and Heavy Duty Vehicle Inspection Program (HDVIP).
27-026
Jul 28, 2016
060000 ENGINE (PWS)
Eaton ultrashift plus excessive engine over-speed lamp on.
27-026
Jul 28, 2016
060000 ENGINE (PWS)
FIX-AS-FAIL - ENGINE OVER-SPEED LAMP COULD COME ON AFTER A DOWNSHIFT WITH THE EATON ULTRASHIFT PLUS TRANSMISSION. THIS DOES NOT AFFECT THE FUNCTION OF THE VEHICLE.
27-026
Jul 28, 2016
100000 POWER TRAIN
Eaton ultrashift plus excessive engine over-speed lamp on.
E065
Feb 4, 2013
118000 ELECTRICAL SYSTEM:SOFTWARE
MX RC5-RC14 SOFTWARE UPDATE CAMPAIGN. SOFTWARE UPDATES ARE SAID TO BENEFIT THE ENGINES IN RC5 AND RC14 KENWORTH ENGINES. PACCAR/KENWORTH. *KB
E065
Feb 4, 2013
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
MX RC5-RC14 SOFTWARE UPDATE CAMPAIGN. SOFTWARE UPDATES ARE SAID TO BENEFIT THE ENGINES IN RC5 AND RC14 KENWORTH ENGINES. PACCAR/KENWORTH. *KB
TIB-E061
Nov 9, 2012
118000 ELECTRICAL SYSTEM:SOFTWARE
KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SPECIFIC PRODUCT IMPROVEMENT ELEMENTS ARE DESCRIBED IN BULLETIN FOR CHASSIS BENEFITING FROM ENGINE SOFTWARE UPDATES. MODELS 2010-2012 T660, T700, T800, W900. *PE
TIB-26-023
Nov 6, 2012
060000 ENGINE (PWS)
KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. TRANSMISSION DOES NOT AUTOMATICALLY UPSHIFT WHEN HIGH IDLE SPEED OF ENGINE IS EXCEEDED DUE TO LACK OF PROPER CALIBRATION OF TRANSMISSION FOR-ENGINE. MODELS 2010-2012 T660, T700 AND T
TIB-26-023
Nov 6, 2012
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. TRANSMISSION DOES NOT AUTOMATICALLY UPSHIFT WHEN HIGH IDLE SPEED OF ENGINE IS EXCEEDED DUE TO LACK OF PROPER CALIBRATION OF TRANSMISSION FOR-ENGINE. MODELS 2010-2012 T660, T700 AND T
TIB-26-023
Nov 6, 2012
118000 ELECTRICAL SYSTEM:SOFTWARE
KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. TRANSMISSION DOES NOT AUTOMATICALLY UPSHIFT WHEN HIGH IDLE SPEED OF ENGINE IS EXCEEDED DUE TO LACK OF PROPER CALIBRATION OF TRANSMISSION FOR-ENGINE. MODELS 2010-2012 T660, T700 AND T
SB-45-045
Sep 11, 2012
118000 ELECTRICAL SYSTEM:SOFTWARE
KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ON CERTAIN TRUCKS, WITH CNG FUELED ENGINE, AND WITH ENGINE BRAKE, PROGRAMMING FAILED TO EFFICIENTLY COORDINATE ABS DEPLOYMENT AND NOT GET UPLOADED ON CHASSIS. MODEL 2011 T660.
SB-45-045
Sep 11, 2012
060000 ENGINE (PWS)
KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ON CERTAIN TRUCKS, WITH CNG FUELED ENGINE, AND WITH ENGINE BRAKE, PROGRAMMING FAILED TO EFFICIENTLY COORDINATE ABS DEPLOYMENT AND NOT GET UPLOADED ON CHASSIS. MODEL 2011 T660.
TIB-E-055
Jul 9, 2012
061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
KENWORTH: OIL COLLECTION AT CAC INTAKE PIPE IS CAUSED BY AN IMBALANCE IN TURBOCHARGER PRESSURES. MODELS T660, T800, T700, AND W900. *PE
TIB-03-047
Jul 2, 2012
092000 FUEL SYSTEM, OTHER:DELIVERY
KENWORTH: DIAGNOSTICS INDICATE FAILED FUEL LEVEL SENSOR FUNCTION IN REPAIRS AND BEFORE COMPONENT IS REPLACED, DIAL FACE SHOULD BE CLEANED AND FAILURE VERIFIED. ALL KENWORTH MODELS WITH OHM DIAL OR OPEN CARD STYLE FUEL SENDERS. *
TIB-E-053
Jun 21, 2012
092200 FUEL SYSTEM, OTHER:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. LINE FATIGUE FAILURE MAY BE DUE TO EXCESSIVE VIBRATIONS OF HIGH PRESSURE FUEL LINES AND DIESEL FUEL LEAK AND MALFUNCTION INDICATOR LAMP. *PE
TIB-E-053
Jun 21, 2012
072200 FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. LINE FATIGUE FAILURE MAY BE DUE TO EXCESSIVE VIBRATIONS OF HIGH PRESSURE FUEL LINES AND DIESEL FUEL LEAK AND MALFUNCTION INDICATOR LAMP. *PE
TIB-E-056
May 17, 2012
060000 ENGINE (PWS)
KENWORTH (PACCAR): ENGINE SOFTWARE UPDATE REQUIRED FOR INSTALLATION OF HC DOSER SHIELDS AND/OR EGR CLEANING FOR CHASSIS. *PE
TIB-15-021
Apr 20, 2012
017210 STEERING:LINKAGES:DRAG:LINK:CONNECTION
KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THE CHASSIS MAY NOT HAVE THE PROPER ASSEMBLY CONTROLS IN PLACE FOR DRAGLINK CONNECTIONS TORQUE. MODELS C500, K500, T660, T800 AND W900 2011-2012. *PE
TIB-36-003
Mar 15, 2012
118000 ELECTRICAL SYSTEM:SOFTWARE
KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ON CERTAIN CHASSIS, THE TRANSMISSION TEMPERATURE FAILS TO BE ON THE NAVPLUS DRIVER DISPLAY AND CERTAIN CAUTIONS AND WARNINGS APPROPRIATE FOR HIGHWAYS NEEDS TO BE DISABLED FOR RESIDEN
TIB-34-041
Jan 26, 2012
061000 ENGINE AND ENGINE COOLING:ENGINE
KENWORTH: INFORMATION FOR AFTERTREATMENT, PMCI OR RELATED ISSUES, CAUSED BY CORROSION FOR WATER IN FUEL (WIF) SENSOR, AT ENGINE HARNESS J175 CONNECTOR. *PE
TIB-E-046
Jan 24, 2012
071110 FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP
KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THE ORIGINAL STYLE OIL FILTER CAP SYSTEM IS BEING REPLACED BY AN IMPROVED OIL FILTER CAP LOCK SYSTEM. *PE
TIB-E-050
Jan 23, 2012
118000 ELECTRICAL SYSTEM:SOFTWARE
KENWORTH: ENGINE CONTROL UNIT (ECU), IDENTIFIED AS PMCI IN ENGINE RAPIDO, SHOULD HAVE A PROTECTIVE SHIELD FOR SOFTWARE UPDATES AND THE HC DOSER FITTING INSTALLED FOR AFTER AFTERTREATMENT CONTROL UNIT. *PE
TIB-E-050
Jan 23, 2012
061000 ENGINE AND ENGINE COOLING:ENGINE
KENWORTH: ENGINE CONTROL UNIT (ECU), IDENTIFIED AS PMCI IN ENGINE RAPIDO, SHOULD HAVE A PROTECTIVE SHIELD FOR SOFTWARE UPDATES AND THE HC DOSER FITTING INSTALLED FOR AFTER AFTERTREATMENT CONTROL UNIT. *PE
TIB-43-23
Nov 8, 2011
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
KENWORTH: INFORMATION REGARDING REAR NOX SENSOR REPAIRS SHOULD INCLUDE SYSTEM UPDATES FOR CHASSIS OPERATING IN CONDITIONS WHICH RESULT IN MOISTURE RELATED SENSOR FAILURES WITH IMPROVED MOISTURE PROTECTION EXHAUST DESIGN FOR REAR NOX SENS
TIB-43-22
Oct 31, 2011
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. 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.
TIB-E-045
Oct 17, 2011
118000 ELECTRICAL SYSTEM:SOFTWARE
KENWORTH: FOR CERTAIN TRUCKS, THE ENGINE CONTROL UNIT (ECU), IDENTIFIED AS PMCI IN ENGINE RAPIDO, AND AFTERTREATMENT CONTROL UNIT WILL BENEFIT FROM SOFTWARE UPDATES. *PE
TIB-26-21
Sep 12, 2011
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
KENWORTH: ON CERTAIN TRUCKS, THE EATON TRANSMISSIONS MAY BE SUSCEPTIBLE TO HAVING WATER INTRUSION WHICH CAN CAUSE THE ECU TO STOP WORKING. LOSS OF COMMUNICATION AND PRIMARY FUNCTION MAY REQUIRE REPLACEMENT OF THE ECU'S FAILURE MODE.
TIB-E037
Aug 29, 2011
015100 STEERING:HYDRAULIC POWER ASSIST:PUMP
KENWORTH: POWER STEERING PUMP SPOOL VALVE DOES NOT MEET QUALITY STANDARDS. THERE MAY BE A LACK OF STEERING ASSIST OR HARD STEERING AT IDLE. *RM
TIB-44-19
Aug 12, 2011
092300 FUEL SYSTEM, OTHER:FUEL FILTER
PACCAR: WATER MAY SEEP BETWEEN THE WIRE INSULATION AND POTTING OF THE FUEL SENSOR. THERE MAY BE AN ERRATIC FALSE WARNING OF WATER IN FUEL. *RM
TIB-44-19
Aug 12, 2011
114000 ELECTRICAL SYSTEM:WIRING
PACCAR: WATER MAY SEEP BETWEEN THE WIRE INSULATION AND POTTING OF THE FUEL SENSOR. THERE MAY BE AN ERRATIC FALSE WARNING OF WATER IN FUEL. *RM
TIB-E039
Aug 5, 2011
061000 ENGINE AND ENGINE COOLING:ENGINE
PACCAR: SOFTWARE UPDATE INFORMATION. *RM
TIB-16-033
Aug 5, 2011
021243 SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY:SHACKLE
PACCAR: SHACKLE LINKS MAY HAVE BEEN MANUFACTURED INCORRECTLY AND HAVE PREMATURE CRACKING AND/OR A POSSIBLE BROKEN SHACKLE LINK. FAILURE OF ONE OR BOTH SHACKLE LINKS MAY RESULT IN THE VEHICLE PULLING TO ONE SIDE. *RM
TIB-03-044
Aug 5, 2011
091200 FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM
PACCAR INC: PROGRAMMING CAMPAIGN TO ALLOW PROPER WARNING TIME BEFORE FUEL TANK IS EMPTY. *RM
TIB-03-043
Aug 5, 2011
091200 FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM
PACCAR INC: FUEL SENSOR INDICATING LESS THAN FULL WHEN THE TANK IS FULL. *RM
TIB-03-042
Aug 5, 2011
091200 FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM
PACCAR: THE FUEL SENSORS MIGHT NOT HAVE A SEALANT PLUG WHICH COULD LEAD TO WATER INTRUSION, CORROSSION, AND FALSE READINGS. *RM
TIB-E039
Aug 5, 2011
118000 ELECTRICAL SYSTEM:SOFTWARE
PACCAR: SOFTWARE UPDATE INFORMATION. *RM
TIB-41-014
Aug 1, 2011
062100 ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY
PACCAR: THERE ARE COOLING MODULES THAT MAY HAVE A LOOSE CONNECTION AT THE CHARGE AIR COOLER MOUNTING. *RM
TIB-42-043
Aug 1, 2011
062200 ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
PACCAR: INFORMATION ON FAN HUB BEARINGS INSPECTION AND WARRANTY EXTENSION DUE TO A HIGHER THAN NORMAL FAILURE RATE. *RM
TIB-42-48
Jul 6, 2011
062200 ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
PACCAR: INFORMATION ON PREMATURE FAN CLUTCH LINING WEAR. *RM
TIB-13-32
Jun 17, 2011
040000 SERVICE BRAKES, AIR
PACCAR: VEHICLES WERE BUILT WITH MISSING REAR AXLE CAMSHAFT BRACES. *RM
TIB-E-033
Jun 7, 2011
062000 ENGINE AND ENGINE COOLING:COOLING SYSTEM
PACCAR SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THERE MAY HAVE BEEN IMPROPER TORQUE TO THE ENGINE COOLANT FILTER WHICH COULD LEAD TO LEAKING AND ENGINE OVERHEATING. *RM
TIB-E-032
May 24, 2011
355100 EQUIPMENT:OTHER:LABELS
PACCAR SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SOME KENWORTH VEHICLES ARE MISSING AN EMISSIONS COMPLIANCE LABEL. *RM
TIB-E-032
May 24, 2011
063100 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
PACCAR SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SOME KENWORTH VEHICLES ARE MISSING AN EMISSIONS COMPLIANCE LABEL. *RM
TIB-E-020
Mar 28, 2011
060000 ENGINE AND ENGINE COOLING
PACCAR: A COOLANT SIEVE MUST BE REMOVED AT THE FIRST ENGINE OIL CHANGE. *RM
TIB-E-029
Mar 24, 2011
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
PACCAR: THERE MAY BE FALSE TORQUE READINGS AND A POTENTIAL FOR LOOSENING AND/OR LEAKS OF THE DOSER SUPPLY LINE SWIVEL NUT. THIS IS DUE TO IT NOT BEING LUBRICATE PRIOR TO ASSEMBLY. *RM
43-020
Feb 1, 2011
061000 ENGINE AND ENGINE COOLING:ENGINE
PACCAR: THE CHASSIS NEEDS TO HAVE PRODUCTION PARTS INSTALLED AND PRE-PRODUCTION PARTS REMOVED. *RM
TIB-E011
Dec 15, 2010
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
PACCAR: ENGINEERING STANDARDS HAVE CHANGED AND THERE ARE NOW ENGINES WITH HEAT TREATED BOLTS. *RM
TIB-E-009
Dec 2, 2010
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
PACCAR: A SOFTWARE UPDATE IS CAUSING THE CHECK ENGINE LIGHT TO COME ON. *RM
KENWORTH T660 - All Years Overview
Complete safety history for the KENWORTH T660 across all model years (2004, 2020).
137
Total Recalls
10
Total Complaints
0
Investigations
2
Reported Crashes
1
Reported Fires
0
Reported Deaths
KENWORTH T660 - Year by Year
Compare recalls and complaints across model years. Click any year to see full details.