F 250 2WD Pickup V8-6.9L DSL (1985)
Brake Proportioning/Combination Valve: All Technical Service Bulletins
Front Brakes - Premature Lining Wear/Hard Pedal
Article No. 89-25-16
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BRAKES - FRONT - PREMATURE LINING WEAR
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BRAKES - REAR HEIGHT SENSING PROPORTIONING VALVE - INOPERATIVE DUE TO SUSPENSION MODIFICATION
LIGHT TRUCK:
1985-86 F-250, F-350 1985-89 E-250, E-350
ISSUE:
High brake pedal efforts or increased front brake lining wear may be caused by aftermarket suspension modifications. The modified
suspension may affect the performance of the height sensing proportioning valve.
Figure 2
Figure 3
ACTION:
Inspect the truck to determine if the suspension has been modified. Compare the rear suspension (springs) to the suspension specifications
