Item Affected: SERVICE BRAKES, AIR:ANTILOCK:INTERCONNECTING ASSEMBLY(WIRING)
Date Announced: 09/15/1977
Description of Recall: THE INVOLVED VEHICLES MAY NOT COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS". THE TRAILER BRAKE CONTROL AIR LINE WAS CONNECTED TO THE FRONT BRAKE DOUBLE CHECK VALVE RATHER THAN THE STOP LAMP SWITCH DOUBLE CHECK VALVE, SUCH THAT IN THE EVENT OF A FAILURE OF THE TRUCK FRONT BRAKE SYSTEM THE TRAILER BRAKES CANNOT BE APPLIED USING THE SERVICE BRAKE CONTROL (TREADLE VALVE).
Conequence:
Action Need To Fix It: DEALER WILL INSPECT AND CONNECT THE BRAKE CONTROL AIR LINE TO THE PROPER VALVE, WITHOUT CHARGE TO OWNER.
Notes: VEHICLE DESCRIPTION: TRUCKS EQUIPPED WITH AIR BRAKE MODELS W/RQ3 AND W/J91.SYSTEM: SERVICE BRAKES; TRAILER BRAKE CONTROLS.CONSEQUENCES OF DEFECT: LOSS OF TREADLE VALVE CONTROL OVER THE TRAILER BRAKESWOULD INCREASE VEHICLE STOPPING DISTANCE AND COULD RESULT IN AN ACCIDENT.
Item Affected: SERVICE BRAKES, AIR:ANTILOCK:INTERCONNECTING ASSEMBLY(WIRING)
Date Announced: 09/15/1977
Description of Recall: THE INVOLVED VEHICLES MAY NOT COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS". THE TRAILER BRAKE CONTROL AIR LINE WAS CONNECTED TO THE FRONT BRAKE DOUBLE CHECK VALVE RATHER THAN THE STOP LAMP SWITCH DOUBLE CHECK VALVE, SUCH THAT IN THE EVENT OF A FAILURE OF THE TRUCK FRONT BRAKE SYSTEM THE TRAILER BRAKES CANNOT BE APPLIED USING THE SERVICE BRAKE CONTROL (TREADLE VALVE).
Conequence:
Action Need To Fix It: DEALER WILL INSPECT AND CONNECT THE BRAKE CONTROL AIR LINE TO THE PROPER VALVE, WITHOUT CHARGE TO OWNER.
Notes: VEHICLE DESCRIPTION: TRUCKS EQUIPPED WITH AIR BRAKE MODELS W/RQ3 AND W/J91.SYSTEM: SERVICE BRAKES; TRAILER BRAKE CONTROLS.CONSEQUENCES OF DEFECT: LOSS OF TREADLE VALVE CONTROL OVER THE TRAILER BRAKESWOULD INCREASE VEHICLE STOPPING DISTANCE AND COULD RESULT IN AN ACCIDENT.
Item Affected: SERVICE BRAKES, AIR:ANTILOCK:INTERCONNECTING ASSEMBLY(WIRING)
Date Announced: 09/15/1977
Description of Recall: THE INVOLVED VEHICLES MAY NOT COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS". THE TRAILER BRAKE CONTROL AIR LINE WAS CONNECTED TO THE FRONT BRAKE DOUBLE CHECK VALVE RATHER THAN THE STOP LAMP SWITCH DOUBLE CHECK VALVE, SUCH THAT IN THE EVENT OF A FAILURE OF THE TRUCK FRONT BRAKE SYSTEM THE TRAILER BRAKES CANNOT BE APPLIED USING THE SERVICE BRAKE CONTROL (TREADLE VALVE).
Conequence:
Action Need To Fix It: DEALER WILL INSPECT AND CONNECT THE BRAKE CONTROL AIR LINE TO THE PROPER VALVE, WITHOUT CHARGE TO OWNER.
Notes: VEHICLE DESCRIPTION: TRUCKS EQUIPPED WITH AIR BRAKE MODELS W/RQ3 AND W/J91.SYSTEM: SERVICE BRAKES; TRAILER BRAKE CONTROLS.CONSEQUENCES OF DEFECT: LOSS OF TREADLE VALVE CONTROL OVER THE TRAILER BRAKESWOULD INCREASE VEHICLE STOPPING DISTANCE AND COULD RESULT IN AN ACCIDENT.
Item Affected: POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START SWITCH
Date Announced: 11/21/1974
Description of Recall:
Conequence:
Action Need To Fix It:
Notes: CHEVROLET CAMPAIGN NO 74-C-19. POSSIBILITY WHEN THE ALLISON MT-650TRANSMISSION IS MATCHED WITH EITHER THE 366 OR 427 CID V-8 ENGINES, THE 1,3 TO1,0 GOVERNOR DRIVE-TO-DRIVEN GEAR RATION CAN CREATE EXCESSIVE GOVERNOR RPM WHENOPERATED IN TOP GEAR AT OR NEAR MAXIMUM RATED ENGINE SPEED RPM OF 4000. THEEXCESSIVE GOVERNOR SPEED CAN RESULT IN A GOVERNOR DRIVEN GEAR FAILURE. AFAILURE OF THIS TYPE CAN CAUSE A DOWN SHIFT OF THE TRANSMISSION WITHOUTWARNING. IF THIS OCCURS, TRANSMISSION AND ENGINE SPEED WOULD INCREASE GREATLYAND MAY RESULT IN ONE OF THESE COMPONENTS BREAKING. (CORRECT BY INSPECTING ANDINSTALLING NEW TRANSMISSION REAR HOUSING ASSEMBLY AND GOVERNOR WITH 1. 0 TO 1.0 DRIVE-TO-DRIVEN RATIO. )
Item Affected: POWER TRAIN:AUTOMATIC TRANSMISSION
Date Announced: 04/07/1975
Description of Recall:
Conequence:
Action Need To Fix It:
Notes: CHEVROLET CAMPAIGN NO 75-C-09. GMC CAMPAIGN NO 75-C-07. EQUIPPED WITH MT-65ALLISON TRANSMISSION MATCHED WITH 366 OR 427 CID V-8 ENGINE. HEAVY DUTYTRUCKS. POSSIBILITY THAT DURING THE CORRECTIVE ACTION TO ELIMINATE THE DEFECTCOVERED IN RECALL CAMPAIGN 74-0226. NOVEMBER 18, 1974, THE GOVERNOR ASSEMBLYWAS REWORKED TO REPLACE THE NYLON DRIVEN GEAR WITH A BRONZE DRIVEN GEAR. ITHAS BEEN DETERMINED THAT AS A RESULT OF THIS REWORK, NYLON CHIPS OF SUFFICIENTSIZE MAY HAVE BEEN LEFT IN THE GOVERNOR ASSEMBLY, WHICH COULD PLUG THE GOVERNORVALVE OIL PORT. IF THIS OCCURS, IT COULD CAUSE TRANSMISSION COMPONENTS TOBREAK AND FLYING FRAGMENTS COULD RESULT IN PERSONAL INJURY. (CORRECT BYINSPECTING AND REPLACING COMPLETE GOVERNOR ASSEMBLY WITH ONE CONTAINING BRONZEDRIVEN GEAR. )
Item Affected: POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START SWITCH
Date Announced: 11/21/1974
Description of Recall:
Conequence:
Action Need To Fix It:
Notes: CHEVROLET CAMPAIGN NO 74-C-19. POSSIBILITY WHEN THE ALLISON MT-650TRANSMISSION IS MATCHED WITH EITHER THE 366 OR 427 CID V-8 ENGINES, THE 1,3 TO1,0 GOVERNOR DRIVE-TO-DRIVEN GEAR RATION CAN CREATE EXCESSIVE GOVERNOR RPM WHENOPERATED IN TOP GEAR AT OR NEAR MAXIMUM RATED ENGINE SPEED RPM OF 4000. THEEXCESSIVE GOVERNOR SPEED CAN RESULT IN A GOVERNOR DRIVEN GEAR FAILURE. AFAILURE OF THIS TYPE CAN CAUSE A DOWN SHIFT OF THE TRANSMISSION WITHOUTWARNING. IF THIS OCCURS, TRANSMISSION AND ENGINE SPEED WOULD INCREASE GREATLYAND MAY RESULT IN ONE OF THESE COMPONENTS BREAKING. (CORRECT BY INSPECTING ANDINSTALLING NEW TRANSMISSION REAR HOUSING ASSEMBLY AND GOVERNOR WITH 1. 0 TO 1.0 DRIVE-TO-DRIVEN RATIO. )
Item Affected: POWER TRAIN:AUTOMATIC TRANSMISSION
Date Announced: 04/07/1975
Description of Recall:
Conequence:
Action Need To Fix It:
Notes: CHEVROLET CAMPAIGN NO 75-C-09. GMC CAMPAIGN NO 75-C-07. EQUIPPED WITH MT-65ALLISON TRANSMISSION MATCHED WITH 366 OR 427 CID V-8 ENGINE. HEAVY DUTYTRUCKS. POSSIBILITY THAT DURING THE CORRECTIVE ACTION TO ELIMINATE THE DEFECTCOVERED IN RECALL CAMPAIGN 74-0226. NOVEMBER 18, 1974, THE GOVERNOR ASSEMBLYWAS REWORKED TO REPLACE THE NYLON DRIVEN GEAR WITH A BRONZE DRIVEN GEAR. ITHAS BEEN DETERMINED THAT AS A RESULT OF THIS REWORK, NYLON CHIPS OF SUFFICIENTSIZE MAY HAVE BEEN LEFT IN THE GOVERNOR ASSEMBLY, WHICH COULD PLUG THE GOVERNORVALVE OIL PORT. IF THIS OCCURS, IT COULD CAUSE TRANSMISSION COMPONENTS TOBREAK AND FLYING FRAGMENTS COULD RESULT IN PERSONAL INJURY. (CORRECT BYINSPECTING AND REPLACING COMPLETE GOVERNOR ASSEMBLY WITH ONE CONTAINING BRONZEDRIVEN GEAR. )