1. Air in Hydraulic System A spongy brake pedal may be caused by
2. Excessive tire pressure Can not cause very erratic brake pulling while
applying brakes
3. Excessive brake pedal travel A power assist brake booster push rod that is too
short will cause
4. Brake drum machined beyond its limits Can cause brake pedal fade
5. Repair leak and replace brake linings How to correctly service brake linings soaked
with axle grease but still have a lot of lining left
on them
6. Metering Valve Disc/Drum system, the front brakes lock up on
light pedal application. This could be caused by
a bad:
7. Seized caliper piston Will NOT cause a low brake pedal
8. Air in the hydraulic system A spongy brake pedal on a vehicle with 4-wheel
disc brakes with a lower than normal travel in-
dicates
9. Movement of brake pad during braking Causes disc brake squeal
10. Incorrect master cylinder pushrod ad- Excessive pedal travel before brakes apply is
justment caused by
11. Properly operating Power brakes that move down slightly when the
engine is started with the brakes applied are
12. Vacuum supply test
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