- Check for a cracked casting on the master cylinder, or for brake
fluid around the master cylinder. Leaks are indicated only if there is at
least a drop of fluid. A merely damp condition is not abnormal.
- Check for binding at the pedal linkage and for incorrect length
of the pushrod. If there is no binding at the brake pedal, and
if the brake pedal travel is OK, disassemble the master cylinder. Refer to
the Light Duty Truck Unit Repair Manual.
- Check the master cylinder for piston seals that are swollen or
elongated