Investigation EA86005: 1980 Ford Thunderbird

Status

CLOSED

Opened

Nov 25, 1985

Closed

Jul 23, 1987

Model years

1980

Subject

Power brake booster

Component: Service brakes, hydraulic

Summary

Summary of information from manufacturer:ford initiated service actionsto check for engine idle speed, to decrease booster runout, and to furtherreduce the initial brake pedal travel.analysis:the majority of the reports are dated in the 1979-1981 era.most accidents occurred in the first two years of operation.status:a survey of about 2,000 subject car owners concerning the boosterproblem has been completed.the acsc report was received 6/10/87.closed 7/23/87.===

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.