NHTSA Campaign Id 90V100000; Date: May. 24, 1990
This could result in increased stopping distances orincreased pedal pressure required for a given stopping distance, which couldcause an accident.
1990 Ford B Series; 1990 Ford F Series
Component: Service Brakes, Hydraulic:foundation Components:master Cylinder
Manufactured by: Ford Motor Company
Affected Units:: 365
Incorrect size master cylinder installed will provide less line pressure to wheel cylinders for a given pedal pressure.
Install the correct 1. 75 inch master cylinder.
System: hydromax power brake assemblies. Vehicle description: medium duty trucks.
Date Owners notified by Manufacturer: Jun 20, 1990
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