NHTSA Campaign Id 89V223000; Date: Dec. 11, 1989
This would cause reduced braking effectiveness andincreased stopping distance that could result in a crash or collision.
1990 Ford Aerostar
Component: Service Brakes, Hydraulic:foundation Components:master Cylinder
Manufactured by: Ford Motor Company
Affected Units:: 30,000
Inability to maintain pressure in the secondary system of the master cylinder (controls braking of rear wheels) could increase brake pedal travel and reduce brake performance at temperatures less than 40 degrees.
Install new design master cylinder incorporating a redesigned seal.
System: brakes, master cylinder. Vehicle description: truck, van.
Date Owners notified by Manufacturer: Dec 27, 1989
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