Defect Investigation Detail

PONTIAC / BONNEVILLE / 1987

Components - Details
NHTSA Action Number: EA89028 Vehicale/Equipment Name: PONTIAC
Vehicale/Equipment Model: BONNEVILLE Vehicale/Equipment Year: 1987
Component Name: SERVICE BRAKES, HYDRAULIC Manufacturer's Name: General Motors, LLC
Date Opened: Jul, 28 1989 Date Closed: Jul, 27 1990
Subject: REAR BRAKE PIN Summary: Summary:these vehicles have rear drum brakes.the parking lever pivotpin is held by an e ring.when the ring fails, parts of the ring andpin fall loose into the drum and may jam the brake, locking the wheel.a stronger e ring is used in 1988 and newer cars.this investigationhas been expanded to include gms c body cars listed above (e ring commonto all cars shown).===