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CHEVROLET B6 RECALLS - GENERAL MOTORS CORP.
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1991 Chevrolet B6 - (6,656 vehicles affected) - Campaign #92V187000
SUMMARY:
VEHICLE SPEED CONTROL
DESCRIPTION:
A MANUFACTURING CONDITION IN THE THROTTLE BODY INJECTOR (TBI) UNIT MIGHT OCCUR TO ALLOW THE THROTTLE CAM LEVER TO DISENGAGE FROM THE THROTTLE DRIVE SHAFT.
CONSEQUENCE:
IF THE THROTTLE CAM LEVER DISENGAGES FROM THE THROTTLEDRIVE SHAFT, THE ENGINE COULD GO TO WIDE OPEN THROTTLE WITHOUT PRIOR WARNING.THIS LOSS OF VEHICLE ACCELERATOR CONTROL COULD RESULT IN A VEHICLE CRASH.
CORRECTIVE ACTION:
REPLACE THE THROTTLE DRIVE COVER ASSEMBLY.
NOTES:
SYSTEM: FUEL SYSTEM; THROTTLE LINKAGE.VEHICLE DESCRIPTION: SCHOOL BUSES WITH 6.0 LITER ENGINES.
1990 Chevrolet B6 - (6,656 vehicles affected) - Campaign #92V187000
SUMMARY:
VEHICLE SPEED CONTROL
DESCRIPTION:
A MANUFACTURING CONDITION IN THE THROTTLE BODY INJECTOR (TBI) UNIT MIGHT OCCUR TO ALLOW THE THROTTLE CAM LEVER TO DISENGAGE FROM THE THROTTLE DRIVE SHAFT.
CONSEQUENCE:
IF THE THROTTLE CAM LEVER DISENGAGES FROM THE THROTTLEDRIVE SHAFT, THE ENGINE COULD GO TO WIDE OPEN THROTTLE WITHOUT PRIOR WARNING.THIS LOSS OF VEHICLE ACCELERATOR CONTROL COULD RESULT IN A VEHICLE CRASH.
CORRECTIVE ACTION:
REPLACE THE THROTTLE DRIVE COVER ASSEMBLY.
NOTES:
SYSTEM: FUEL SYSTEM; THROTTLE LINKAGE.VEHICLE DESCRIPTION: SCHOOL BUSES WITH 6.0 LITER ENGINES.
1990 Chevrolet B6 - (14,044 vehicles affected) - Campaign #91V032000
SUMMARY:
PARKING BRAKE:DRIVELINE
DESCRIPTION:
THE PARKING BRAKE DRUM ATTACHMENT BOLTS MAY LOOSEN AND CAUSE A DRIVELINE LOCKUP CONDITION WHEN THE BUS IS STOPPED OR ALMOST STOPPED.
CONSEQUENCE:
DRIVELINE LOCK-UP COULD CAUSE LOSS OF VEHICLE CONTROLWITHOUT PRIOR NOTICE, AND RESULT IN A VEHICLE CRASH.
CORRECTIVE ACTION:
REMOVE ALL OF THE PARKING BRAKE DRUM BOLTS, APPLY A RETAINING COMPOUND TO NEW BOLTS, AND TORQUE THE NEW BOLTS TO SPECIFICATION.
NOTES:
SYSTEM: TRANSMISSION MOUNTED PARKING BRAKES DRUM.VEHICLE DESCRIPTION: SCHOOL BUSES EQUIPPED WITH HYDRAULIC BRAKES (JE3) ANDALLISON AT545 AUTOMATIC TRANSMISSIONS (MF1).
1989 Chevrolet B6 - (6,656 vehicles affected) - Campaign #92V187000
SUMMARY:
VEHICLE SPEED CONTROL
DESCRIPTION:
A MANUFACTURING CONDITION IN THE THROTTLE BODY INJECTOR (TBI) UNIT MIGHT OCCUR TO ALLOW THE THROTTLE CAM LEVER TO DISENGAGE FROM THE THROTTLE DRIVE SHAFT.
CONSEQUENCE:
IF THE THROTTLE CAM LEVER DISENGAGES FROM THE THROTTLEDRIVE SHAFT, THE ENGINE COULD GO TO WIDE OPEN THROTTLE WITHOUT PRIOR WARNING.THIS LOSS OF VEHICLE ACCELERATOR CONTROL COULD RESULT IN A VEHICLE CRASH.
CORRECTIVE ACTION:
REPLACE THE THROTTLE DRIVE COVER ASSEMBLY.
NOTES:
SYSTEM: FUEL SYSTEM; THROTTLE LINKAGE.VEHICLE DESCRIPTION: SCHOOL BUSES WITH 6.0 LITER ENGINES.
1989 Chevrolet B6 - (14,044 vehicles affected) - Campaign #91V032000
SUMMARY:
PARKING BRAKE:DRIVELINE
DESCRIPTION:
THE PARKING BRAKE DRUM ATTACHMENT BOLTS MAY LOOSEN AND CAUSE A DRIVELINE LOCKUP CONDITION WHEN THE BUS IS STOPPED OR ALMOST STOPPED.
CONSEQUENCE:
DRIVELINE LOCK-UP COULD CAUSE LOSS OF VEHICLE CONTROLWITHOUT PRIOR NOTICE, AND RESULT IN A VEHICLE CRASH.
CORRECTIVE ACTION:
REMOVE ALL OF THE PARKING BRAKE DRUM BOLTS, APPLY A RETAINING COMPOUND TO NEW BOLTS, AND TORQUE THE NEW BOLTS TO SPECIFICATION.
NOTES:
SYSTEM: TRANSMISSION MOUNTED PARKING BRAKES DRUM.VEHICLE DESCRIPTION: SCHOOL BUSES EQUIPPED WITH HYDRAULIC BRAKES (JE3) ANDALLISON AT545 AUTOMATIC TRANSMISSIONS (MF1).
1988 Chevrolet B6 - (14,044 vehicles affected) - Campaign #91V032000
SUMMARY:
PARKING BRAKE:DRIVELINE
DESCRIPTION:
THE PARKING BRAKE DRUM ATTACHMENT BOLTS MAY LOOSEN AND CAUSE A DRIVELINE LOCKUP CONDITION WHEN THE BUS IS STOPPED OR ALMOST STOPPED.
CONSEQUENCE:
DRIVELINE LOCK-UP COULD CAUSE LOSS OF VEHICLE CONTROLWITHOUT PRIOR NOTICE, AND RESULT IN A VEHICLE CRASH.
CORRECTIVE ACTION:
REMOVE ALL OF THE PARKING BRAKE DRUM BOLTS, APPLY A RETAINING COMPOUND TO NEW BOLTS, AND TORQUE THE NEW BOLTS TO SPECIFICATION.
NOTES:
SYSTEM: TRANSMISSION MOUNTED PARKING BRAKES DRUM.VEHICLE DESCRIPTION: SCHOOL BUSES EQUIPPED WITH HYDRAULIC BRAKES (JE3) ANDALLISON AT545 AUTOMATIC TRANSMISSIONS (MF1).
1987 Chevrolet B6 - (14,044 vehicles affected) - Campaign #91V032000
SUMMARY:
PARKING BRAKE:DRIVELINE
DESCRIPTION:
THE PARKING BRAKE DRUM ATTACHMENT BOLTS MAY LOOSEN AND CAUSE A DRIVELINE LOCKUP CONDITION WHEN THE BUS IS STOPPED OR ALMOST STOPPED.
CONSEQUENCE:
DRIVELINE LOCK-UP COULD CAUSE LOSS OF VEHICLE CONTROLWITHOUT PRIOR NOTICE, AND RESULT IN A VEHICLE CRASH.
CORRECTIVE ACTION:
REMOVE ALL OF THE PARKING BRAKE DRUM BOLTS, APPLY A RETAINING COMPOUND TO NEW BOLTS, AND TORQUE THE NEW BOLTS TO SPECIFICATION.
NOTES:
SYSTEM: TRANSMISSION MOUNTED PARKING BRAKES DRUM.VEHICLE DESCRIPTION: SCHOOL BUSES EQUIPPED WITH HYDRAULIC BRAKES (JE3) ANDALLISON AT545 AUTOMATIC TRANSMISSIONS (MF1).
1986 Chevrolet B6 - (14,044 vehicles affected) - Campaign #91V032000
SUMMARY:
PARKING BRAKE:DRIVELINE
DESCRIPTION:
THE PARKING BRAKE DRUM ATTACHMENT BOLTS MAY LOOSEN AND CAUSE A DRIVELINE LOCKUP CONDITION WHEN THE BUS IS STOPPED OR ALMOST STOPPED.
CONSEQUENCE:
DRIVELINE LOCK-UP COULD CAUSE LOSS OF VEHICLE CONTROLWITHOUT PRIOR NOTICE, AND RESULT IN A VEHICLE CRASH.
CORRECTIVE ACTION:
REMOVE ALL OF THE PARKING BRAKE DRUM BOLTS, APPLY A RETAINING COMPOUND TO NEW BOLTS, AND TORQUE THE NEW BOLTS TO SPECIFICATION.
NOTES:
SYSTEM: TRANSMISSION MOUNTED PARKING BRAKES DRUM.VEHICLE DESCRIPTION: SCHOOL BUSES EQUIPPED WITH HYDRAULIC BRAKES (JE3) ANDALLISON AT545 AUTOMATIC TRANSMISSIONS (MF1).
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