Kenworth W900B recalls by model year

Reported: 1982-07-26 (July 26, 1982) · Model years: 1982

THE INVOLVED TRUCKS MAY HAVE BEEN ASSEMBLED WITHOUT THE INSTALLATION OF A SINGLE CHECK VALVE. THIS FAILS TO COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS". IN THE EVENT OF A SINGLE FAILURE IN THE REAR AIR SYSTEM, THE LACK OF A CHECK VALVE WOULD ALLOW SIMULTANEOUS LOSS OF AIR FROM BOTH FRONT AND REAR BRAKING SYSTEMS.

Remedy: DEALER WILL INSTALL A SINGLE CHECK VALVE, IF NECESSARY, WITHOUT CHARGE TO OWNER.

Reported: 1986-12-07 (December 7, 1986) · Model years: 1983, 1984, 1985, 1986

LINE PRESSURE SURGES OCCUR WHEN THE TRANSMISSION IS IN HIGH GEAR LOCKUP DUE TO A PLUMBING ERROR. CONSEQUENCE OF DEFECT: LINE PRESSURE SURGES COULD CAUSE BODILY HARM THROUGH ERRATIC FIRE HOSE DELIVERY ACTION.

Remedy: REWORK PLUMBING TO PREVENT LINE PRESSURE SURGES.

Reported: 1986-12-07 (December 7, 1986) · Model years: 1985, 1986

THE CIRCUIT BREAKERS MAY FAIL AND ALLOW THE CIRCUIT TO OVERHEAT. CONSEQUENCE OF DEFECT: A FIRE COULD OCCUR AS A RESULT OF THE CIRCUIT BREAKER FAILURE.

Remedy: REMOVE CIRCUIT BREAKERS AND REPLACE WITH FUSES.

Reported: 1987-10-08 (October 8, 1987) · Model years: 1987

THE THROTTLE LEVER IS NOT UNDER SUFFICIENT TENSION.

Consequence: TRUCKS DO NOT COMPLY WITH FMVSS 124.

Remedy: RELOCATE THROTTLE RETURN SPRING ANCHOR AND/OR THE SPRING ANCHOR WILL BE REPLACED.

Reported: 1988-06-24 (June 24, 1988) · Model years: 1987, 1988

ELECTRONIC THROTTLE SENSORS MAY FAIL TO RETURN TO IDLE DUE TO THROTTLE PEDAL STOP BEING INCORRECTLY MANUFACTURED OF ALUMINUM INSTEAD OF STEEL.

Consequence: THIS COULD RESULT IN LOSS OF TRUCK CONTROL AND ANACCIDENT.

Remedy: REPLACE ALUMINUM THROTTLE PEDAL STOPS WITH A STEEL VERSION, ALSO, REPLACE THROTTLE POTENTIOMETER IF IT HAS BEEN OVERLOADED.

Reported: 1991-03-14 (March 14, 1991) · Model years: 1989, 1990

REAR AXLE STABILIZER (SWAY) BAR MAY NOT HAVE BEEN PROPERLY HEAT TREATED.

Remedy: REPLACE THE STABILIZER BAR.

Reported: 1991-06-10 (June 10, 1991) · Model years: 1989, 1990, 1991

SPRAGUE WIPER ASSEMBLY PIVOT CAN SEIZE DUE TO GALVANIC CORROSION BETWEEN THE ZINC-PLATED STEEL SHAFT AND THE BRONZE BUSHINGS.

Consequence: THIS CORROSION CAN CAUSE WIPER ARM/BLADE ASSEMBLY TO STOPWIPING WINDSHIELD, THIS COULD AFFECT DRIVER VISIBILITY AND RESULT IN ANACCIDENT.

Remedy: REPLACE SPRAGUE WIPER ASSEMBLY PIVOT WITH AN ASSEMBLY NOT SUSCEPTIBLE TO GALVANIC CORROSION.

Reported: 1991-04-18 (April 18, 1991) · Model years: 1990, 1991

THE ENGINE FAN MAY EXPERIENCE A RESONANT FREQUENCY CAUSING PREMATURE FAN FAILURE, AND SEPARATION FROM THE ENGINE.

Consequence: ENGINE FAN SEPARATION CAN CAUSE DEATH OR INJURY TO ANYPERSON IN THE PATH OF THE FAN.

Remedy: REPLACE ENGINE FAN WITH FAN FROM ANOTHER MANUFACTURER.

Reported: 1993-10-25 (October 25, 1993) · Model years: 1991, 1992, 1993

THESE TRUCKS DO NOT HAVE THE PROPER CUTOUT IN THE FRONT DROP RAIL SECTION OF THE FRAME RAIL. WITHOUT THE PROPER CUTOUT, THE STEERING DRIVELINE GREASE FITTING WILL INTERFERE WITH THE FLANGE OF THE CHASSIS RAIL.

Consequence: STEERING DRIVELINE INTERFERENCE WOULD PREVENT PROPERSTEERING CONTROL. THE CONDITION CAN RESULT IN LOSS OF STEERING CAPABILITY.

Remedy: DEALERS WILL INSPECT FOR PROPER CUTOUT AND ADEQUATE CLEARANCE WITH THE GREASE FITTING. IF ADEQUATE CLEARANCE DOES NOT EXIST, A CUTOUT WILL BE ADDED TO THE DROP RAIL.

Reported: 2024-12-09 (December 9, 2024) · Model years: 2021, 2022, 2023, 2024, 2025

PACCAR Incorporated (PACCAR) is recalling certain 2021-2025 Peterbilt and Kenworth vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Please see the recall report for a complete list of models. Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop functioning.

Consequence: Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may not function properly or at all, increasing the risk of a crash.

Remedy: Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed February 3, 2025. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. PACCAR's numbers for this recall are 24KWL and 24PBL.