CHEVROLET B6 1986: PARKING BRAKE:DRIVELINE

General Information

NHTSA Campaign ID Number: 91V032000

Make Model Year
CHEVROLET B6 1986
Date Owners Notified Date Received by ODI Date Added to Database
1991-03-27 1991-02-19 1991-02-28

Production Dates: 1985-08-01 - 1989-11-01

Manufacturers Involved: General Motors, LLC

Component: PARKING BRAKE:DRIVELINE

Potential Number Of Units Affected: 14044

Report Initiator: ODI ODI Report

Summary

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.

Remedy

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'.