Service brakes, hydraulic: foundation components: drum: wheel cylinders
Manufacturer
GENERAL MOTORS CORP.
Vehicles affected
1,810,000
Reported to NHTSA
1985-04-29
Defect description
EXCESSIVE ENLARGEMENT OF THE WHEEL CYLINDER PILOT HOLE IN THE REAR BRAKE BACKING PLATE COULD ALLOW THE WHEEL CYLINDER TO ROTATE AND CAUSE LOSS OF BRAKE FLUID. CONSEQUENCE OF DEFECT: A LOSS OF BRAKE FLUID LEADS TO LOSS OF REAR BRAKE ACTION, CREATING THE POTENTIAL FOR AN ACCIDENT. FRONT BRAKES WOULD REMAIN OPERATIONAL.
Manufacturer remedy
ADD A PART TO PREVENT WHEEL CYLINDER FROM ROTATING.
REAR WHEELS MAY LOCK SUDDENLY DUE TO INSUFFICIENT LUBRICATION BETWEEN MAINSHAFT AND FIRST GEAR.
Manufacturer remedy
DEALER WILL REPLACE TRANSMISSION FLUID WITH A BLENDED FLUID AND IN ADDITION, WILL UPDATE THE MAINTENANCE SCHEDULE.
Owner complaints
A complaint is one person's report to a federal agency. It is not a finding.
Component
Complaints
Median mileage
Engine and engine cooling: engine
1
—
Power train: clutch assembly
1
—
The 1981 model has 2 times as many complaints as this one. The 1983 model has about a quarter as many complaints as this one. These figures reflect raw complaint counts, not failure rates. Higher-selling model years naturally receive more complaints.
Safety recall repairs are provided free of charge by franchised dealers, regardless of vehicle age or mileage. This page displays aggregated data for the model year. To check recall status for a specific vehicle, search its VIN at nhtsa.gov.