Investigation EA89033: Vehicles

Status

CLOSED

Opened

Aug 21, 1989

Closed

Feb 8, 1990

Model years

—

Subject

Drum brake system

Component: Service brakes, hydraulic

Summary

Summary:athey published a service bulletin and supplement describing adrum to disc brake conversion.a check of the odi data base revealed afleet complaint pertaining to four units.reoccurring problems such asleaking wheel cylinders, prematurely worn brake shoes, and broken wheelcylinder push rods were described.an ir to athey resulted in anunsatisfactory response.===

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.