KENWORTH KENWORTH Recalls
Item Affected: SERVICE BRAKES, AIR
Date Announced: 04/06/1999
Description of Recall: VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH MERITOR AIR BRAKE AUTOMATIC SLACK ADJUSTERS. SOME OF THE AUTOMATIC SLACK ADJUSTERS HAD INSUFFICIENT TORQUE APPLIED TO THE GUIDE PAWL CAP SCREW.
Conequence: WITHOUT SUFFICIENT TORQUE ON THE GUIDE PAWL CAP SCREW, THE BRAKES COULD GRADUALLY LOSE ADJUSTMENT, INCREASING THE VEHICLE STOPPING DISTANCE.
Action Need To Fix It: DEALERS WILL CHECK THE TORQUE ON THE AUTOMATIC SLACK ADJUSTER GUIDE PAWL. IF THERE IS NO TORQUE, THE BRAKES WILL BE ADJUSTED AND THE GUIDE PAWL WILL BE TIGHTENED TO 15-20 FT. LBS.
Notes: KENWORTH NOTIFIED OWNERS BEGINNING APRIL 30, 1999; AND PETERBILT NOTIFIED THEIR OWNERS ON MAY 10, 1999. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT PETERBILT AT 1-510-790-4013 OR KENWORTH AT 1-206-828-5418. ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).
Item Affected: SERVICE BRAKES, AIR:SLACK ADJUSTERS
Date Announced: 12/09/1999
Description of Recall: VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH 15" (WIDTHS: 4" AND 5") AIR-ACTUATED Q-PLUS CAM BRAKE EQUIPPED WITH FEDERAL MOGUL FRICTION PRODUCTS 3030-197 BRAKE LINING (MERITOR R201) BRAKE LININGS AND ACTUATED WITH TYPE 20 AIR CHAMBERS X 5.5" SLACK ADJUSTERS. THE AFFECTED BRAKES WERE INSTALLED PREDOMINANTLY IN HEAVY TRUCK FRONT AXLE ASSEMBLIES. THESE ASSEMBLIES DO NOT FULLY SATISFY THE TEST PERFORMANCE REQUIREMENTS OF FMVSS NO. 121, "AIR BRAKE SYSTEMS."
Conequence: THIS CONDITION COULD CAUSE DECREASED BRAKING EFFORT.
Action Need To Fix It: THE BRAKE LINING WILL BE REPLACED WITH UPGRADED BRAKE LININGS.
Notes: OWNER NOTIFICATION BEGAN JANUARY 11, 2000. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT KENWORTH AT 1-206-828-5418 OR MERITOR AT 1-248-435-3907. ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).
Item Affected: STEERING:LINKAGES:TIE ROD ASSEMBLY
Date Announced: 05/02/1995
Description of Recall: DURING ASSEMBLY, THE TIE ROD END NUTS WERE NOT PROPERLY TORQUED. EXTREMELY LOW TORQUE CAN ALLOW MOVEMENT BETWEEN THE BALL STUD AND THE TIE ROD ARM CAUSING DAMAGE.
Conequence: THIS CONDITION CAN AFFECT THE DRIVER'S ABILITY TOSTEER THE VEHICLE INCREASING THE POTENTIAL FOR A VEHICLE ACCIDENT.
Action Need To Fix It: DEALERS WILL RETORQUE THESE AXLES TO ROCKWELL'S SPECIFICATIONS.
Notes: SYSTEM: STEERING; LINKAGES; TIE ROD; END.VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH ROCKWELL NON-DRIVING FRONT AXLES, MODELS FF-941, FF-943, FF-961, FG-941 OR FL-941.NOTE: IF YOUR VEHICLE IS PRESENTED TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND THE REMEDY IS NOT PROVIDED FREE OF CHARGE WITHIN A REASONABLE TIME, PLEASE CONTACT PETERBILT AT 1-510-790-4013 OR KENWORTH AT 1-206-828-5418. ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-800-424-9393.
Item Affected: SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS
Date Announced: 03/13/1995
Description of Recall: AIR SYSTEM BLOCKAGE IN THE AIR DRYER OCCURS DEGRADING THE MOISTURE REMOVING CAPABILITIES OF THE DRYER WHEN THE VEHICLE IS OPERATED IN A COLD ENVIRONMENT AND MOISTURE ACCUMULATES AND FREEZES IN THE AIR DRYER OR IN THE LINE BETWEEN THE DRYER AND THE AIR SYSTEM RESERVOIR. THE AIR DRYER CAN BECOME OVER PRESSURIZED CAUSING THE AIR DRYER CARTRIDGE TO SEPARATE FROM THE MOUNTING BASE.
Conequence: IF THE AIR DRYER SEPARATES FROM THE BASE, THE CARTRIDGECAN SEPARATE SUFFICIENTLY ENOUGH TO CAUSE PERSONAL INJURY OR PROPERTY DAMAGE.
Action Need To Fix It: DEALERS WILL EQUIP AIR SYSTEMS WITH A PRESSURE RELIEF VALVE TO BE LOCATED BETWEEN THE COMPRESSOR AND THE AIR DRYER. THIS PRESSURE RELIEF VALVE IS INTENDED TO VENT IF EXCESSIVE PRESSURE DEVELOPS IN THE AIR DRYER.
Notes: SYSTEM: BRAKES; AIR DRYER.VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH ROCKWELL WABCO SYSTEM SAVER "1000" OR SYSTEM SAVER "TWIN" AIR DRYERS. NOTE: IF YOUR VEHICLE IS PRESENTED TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND THE REMEDY IS NOT PROVIDED FREE OF CHARGE WITH IN A REASONABLE TIME, CONTACT PETERBILT AT 1-510-790-4013 OR KENWORTH AT 1-206-828-5418. ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-800-424-9393.
Item Affected: SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS
Date Announced: 03/13/1995
Description of Recall: AIR SYSTEM BLOCKAGE IN THE AIR DRYER OCCURS DEGRADING THE MOISTURE REMOVING CAPABILITIES OF THE DRYER WHEN THE VEHICLE IS OPERATED IN A COLD ENVIRONMENT AND MOISTURE ACCUMULATES AND FREEZES IN THE AIR DRYER OR IN THE LINE BETWEEN THE DRYER AND THE AIR SYSTEM RESERVOIR. THE AIR DRYER CAN BECOME OVER PRESSURIZED CAUSING THE AIR DRYER CARTRIDGE TO SEPARATE FROM THE MOUNTING BASE.
Conequence: IF THE AIR DRYER SEPARATES FROM THE BASE, THE CARTRIDGECAN SEPARATE SUFFICIENTLY ENOUGH TO CAUSE PERSONAL INJURY OR PROPERTY DAMAGE.
Action Need To Fix It: DEALERS WILL EQUIP AIR SYSTEMS WITH A PRESSURE RELIEF VALVE TO BE LOCATED BETWEEN THE COMPRESSOR AND THE AIR DRYER. THIS PRESSURE RELIEF VALVE IS INTENDED TO VENT IF EXCESSIVE PRESSURE DEVELOPS IN THE AIR DRYER.
Notes: SYSTEM: BRAKES; AIR DRYER.VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH ROCKWELL WABCO SYSTEM SAVER "1000" OR SYSTEM SAVER "TWIN" AIR DRYERS. NOTE: IF YOUR VEHICLE IS PRESENTED TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND THE REMEDY IS NOT PROVIDED FREE OF CHARGE WITH IN A REASONABLE TIME, CONTACT PETERBILT AT 1-510-790-4013 OR KENWORTH AT 1-206-828-5418. ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-800-424-9393.
Item Affected: STEERING:LINKAGES
Date Announced: 03/23/1993
Description of Recall: AN INCORRECT TOOL WAS USED TO INSTALL PITMAN ARM PINCH BOLTS, RESULTING IN INADEQUATE TORQUE ON THE PITMAN ARM PINCH BOLTS.
Conequence: INADEQUATE TORQUE ON THE BOLTS ALLOWS THE PITMAN ARMTO SLIP ON THE STEERING GEAR OUTPUT SHAFT WHICH RESULTS IN LOSS OF VEHICLECONTROL.
Action Need To Fix It: APPLY CORRECT TORQUE TO INADEQUATELY TORQUED PINCH BOLTS.
Notes: SYSTEM: STEERING.VEHICLE DESCRIPTION: HEAVY TRUCKS MANUFACTURED AT THE STE. THERESE, CANADAFACILITY BETWEEN DECEMBER 18, 1992 AND MARCH 8, 1993.
Item Affected: SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS
Date Announced: 03/13/1995
Description of Recall: AIR SYSTEM BLOCKAGE IN THE AIR DRYER OCCURS DEGRADING THE MOISTURE REMOVING CAPABILITIES OF THE DRYER WHEN THE VEHICLE IS OPERATED IN A COLD ENVIRONMENT AND MOISTURE ACCUMULATES AND FREEZES IN THE AIR DRYER OR IN THE LINE BETWEEN THE DRYER AND THE AIR SYSTEM RESERVOIR. THE AIR DRYER CAN BECOME OVER PRESSURIZED CAUSING THE AIR DRYER CARTRIDGE TO SEPARATE FROM THE MOUNTING BASE.
Conequence: IF THE AIR DRYER SEPARATES FROM THE BASE, THE CARTRIDGECAN SEPARATE SUFFICIENTLY ENOUGH TO CAUSE PERSONAL INJURY OR PROPERTY DAMAGE.
Action Need To Fix It: DEALERS WILL EQUIP AIR SYSTEMS WITH A PRESSURE RELIEF VALVE TO BE LOCATED BETWEEN THE COMPRESSOR AND THE AIR DRYER. THIS PRESSURE RELIEF VALVE IS INTENDED TO VENT IF EXCESSIVE PRESSURE DEVELOPS IN THE AIR DRYER.
Notes: SYSTEM: BRAKES; AIR DRYER.VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH ROCKWELL WABCO SYSTEM SAVER "1000" OR SYSTEM SAVER "TWIN" AIR DRYERS. NOTE: IF YOUR VEHICLE IS PRESENTED TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND THE REMEDY IS NOT PROVIDED FREE OF CHARGE WITH IN A REASONABLE TIME, CONTACT PETERBILT AT 1-510-790-4013 OR KENWORTH AT 1-206-828-5418. ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-800-424-9393.
Item Affected: SERVICE BRAKES, AIR:DRUM:CHAMBER
Date Announced: 05/13/1992
Description of Recall: A CRACK IN THE DIE CAST ALUMINUM HOUSING OF THE BRAKE CHAMBER CAUSES A LOSS OF AIR PRESSURE IN THE CHAMBER. LOSS OF AIR PRESSURE CAUSES THE SPRING BRAKES TO BE APPLIED.
Conequence: LOSS OF AIR PRESSURE IN THE HOUSING OF THE BRAKE CHAMBERAND THE SUBSEQUENT APPLICATION OF THE SPRING BRAKES DISABLES THE TRUCK WITHOUTPRIOR WARNING AND COULD CAUSE A VEHICLE ACCIDENT.
Action Need To Fix It: REPAIR OR REPLACE THE SUSPECT MGM BRAKE CHAMBERS.
Notes: SYSTEM: AIR BRAKES.VEHICLE DESCRIPTION: HEAVY TRUCKS WITH MGM BRAKE CHAMBERS, PART NUMBERS3430086, 3430087, 3430096, 3430097, 3431057, AND 3431058.
Item Affected: WHEELS:LUGS/NUTS/BOLTS
Date Announced: 06/22/1992
Description of Recall: THE WHEEL MOUNTING STUDS ON IRON FRONT AND REAR HUBS CAN FRACTURE.
Conequence: BROKEN WHEEL MOUNTING STUDS CAN CAUSE THE TIRE AND WHEELTO SEPARATE FROM THE AXLE AND COULD RESULT IN A VEHICLE ACCIDENT.
Action Need To Fix It: REPLACE THE FRONT AND REAR HUBS WITH HUBS WHICH HAVE NEW STUDS.
Notes: SYSTEM: WHEEL MOUNTING STUDS.VEHICLE DESCRIPTION: HEAVY TRUCKS WITH IRON FRONT AND REAR HUBS UTILIZING BALLSEAT WHEEL MOUNTING CONFIGURATION MANUFACTURED BY DAYTON-WALTHER.
Item Affected: STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
Date Announced: 12/03/1991
Description of Recall: TRW SUPPLIED POWER STEERING GEARS WITH NON-HEAT-TREATED WORM SCREWS. THE STEERING GEARS WITHOUT HEAT TREATED WORM SCREWS CAN LOCK UP IN TIGHT TURNING MANEUVERS.
Conequence: LOCK UPS OF THE STEERING GEAR CAUSES LOSS OF STEERINGCONTROL AND COULD RESULT IN AN ACCIDENT.
Action Need To Fix It: REPLACE THE NON-HEAT-TREATED WORM SCREWS.
Notes: SYSTEM: STEERING GEARS.VEHICLE DESCRIPTION: KENWORTH TRUCKS EQUIPPED WITH TAS65007 POWER STEERING GEARSAND MANUFACTURED IN SEATTLE AND ST. THERESE.
