OTHER BRAKE CONDITIONS
CONDITION POSSIBLE CAUSES CORRECTION
BRAKES CHATTER 1. Disc brake rotor has excessive
thickness variation.
1. Isolate condition as rear or front.
Reface or replace brake rotors as
necessary.
BRAKES DRAG (FRONT
OR ALL)
1. Contaminated brake fluid. 1. Check for swollen seals. Replace all
system components containing rubber.
2. Binding caliper pins or bushings. 2. Replace pins and bushings
3. Binding master cylinder. 3. Replace master cylinder.
4. Binding brake pedal. 4. Replace brake pedal.
BRAKES DRAG (REAR
ONLY)
1. Parking brake cables binding or
froze up.
1. Check cable routing. Replace cables
as necessary.
2. Parking brake cable return spring
not returning shoes.
2. Replace cables as necessary.
3. Obstruction inside the center
console preventing full return of the
parking brake cables.
3. Remove console and remove
obstruction.
BRAKES GRAB 1. Contaminated brake shoe linings. 1. Inspect and clean, or replace shoes.
Repair source of contamination.
2. Improper power brake booster
assist.
2. Refer to Power Brake Booster in the
diagnosis and testing section.
EXCESSIVE PEDAL
EFFORT
1. Obstruction of brake pedal. 1. Inspect, remove or move obstruction.
2. Low power brake booster assist. 2. Refer to power brake booster in the
diagnosis and testing section.
3. Glazed brake linings. 3. Reface or replace brake rotors as
necessary. Replace brake shoes.
4. Brake shoe lining transfer to brake
rotor.
4. Reface or replace brake rotors as
necessary. Replace brake shoes.
EXCESSIVE PEDAL
TRAVEL (VEHICLE STOPS
OK)
1. Air in brake lines. 1. Bleed brakes.
EXCESSIVE PEDAL
TRAVEL (PEDAL GOES
TO FLOOR - CAN’T SKID
WHEELS)
1. Power brake booster runout
(vacuum assist).
1. Check booster vacuum hose and
engine tune for adequate vacuum
supply. Refer to power brake booster in
the diagnosis and testing section.
EXCESSIVE PEDAL
TRAVEL (ONE FRONT
WHEEL LOCKS UP
DURING HARD BRAKING)
1. One of the two hydraulic circuits
to the front brakes is malfunctioning.
1. Inspect system for leaks. Check
master cylinder for internal malfunction.
PEDAL PULSATES/
SURGES DURING
BRAKING
1. Disc brake rotor has excessive
thickness variation.
1. Isolate condition as rear or front.
Reface or replace brake rotors as
necessary.
5 - 12 BRAKES LH
DIAGNOSIS AND TESTING (Continued)