Diagnosis By Symptom

Brakes Grab
1. Contaminated, damaged or dirty linings.
2. Damaged booster.
3. Improperly assembled booster valve.

Excessive Pedal Effort
1. Leak in booster vacuum supply system.
2. Glazed linings.
3. Restricted filter or booster valve air passage.
4. Damaged booster or improperly assembled booster valve.

Brakes Slow To Respond
1. Restricted filter or booster valve air passage.
2. Contaminated brake fluid.
3. Leak in booster vacuum supply system.
4. Damaged booster or improperly assembled booster valve.

Brakes Slow To Release Or Drag
1. Damaged booster assembly.
2. Improperly assembled booster valve.
3. Pedal linkage damaged or improperly adjusted.
4. Restricted booster air passage.
5. Insufficient caliper guide lubrication; damaged or defective calipers.
6. Contaminated brake fluid.