Investigation EA87009: 1985–1986 Chevrolet Astro

Status

CLOSED

Opened

Jan 21, 1987

Closed

Aug 16, 1988

Model years

1985–1986

Subject

REAR BRAKES

Component: Service brakes, hydraulic

Summary

Analysis: the proposed gm changes should reduce the front-bias in therear brake system.however there is no indication that gm will retrofitthe 1985 and 1986 model year vehicles.reports indicate that the problemmay not lie in the brake biasing system, but rather in malfunctioningor improperly designed rear brake adjusters.status: analyzing response from gm dated 5/12/87.awaiting reply from nhtsa's legal staff concerning gm's response.told to sit on it a while by mr. Parker at 8/20/87 briefing.after legal's reply, the data will be updated and an actiondecision will be forwarded for supervisor's review.===

An NHTSA investigation looks into whether a safety defect exists. Opening one is not a finding. Outcomes can include a recall, closure without action, or further inquiry.

Model years covered

• 1986 Chevrolet Astro23 complaints
• 1985 Chevrolet Astro5 complaints