| 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. Misadjusted stop lamp switch. |
3. Replace stop lamp switch. Refer to SWITCH, STOP LAMP, REMOVAL
. |
| 4. Master cylinder not fully returning. |
4. Inspect master cylinder and replace as necessary. |
| 5. Binding brake pedal. |
5. Replace brake pedal/bushings. |
| 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 linings. |
1. Inspect and clean, or replace pads. Repair source of contamination. |
| 2. Improper power brake booster assist. |
2. Refer to BOOSTER, POWER BRAKE . |
| EXCESSIVE PEDAL EFFORT |
1. Obstruction of brake pedal. |
1. Inspect, remove or move obstruction. |
| 2. Low power brake booster assist. |
2. Refer to BOOSTER, POWER BRAKE . |
| 3. Glazed brake linings. |
3. Reface or replace brake rotors as necessary. Replace brake pads. |
| 4. Brake lining transfer to brake rotor. |
4. Reface or replace brake rotors as necessary. Replace brake pads. |
| EXCESSIVE PEDAL EFFORT (HARD PEDAL - 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 BOOSTER, POWER BRAKE . |
| EXCESSIVE PEDAL TRAVEL (VEHICLE STOPS OK) |
1. Air in brake lines. |
1. Bleed brakes. |
| EXCESSIVE PEDAL TRAVEL (ONE FRONT WHEEL LOCKS UP DURING HARD BRAKING) |
1. One of the two hydraulic circuits 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. |
| PEDAL IS SPONGY |
1. Air in brake lines. |
1. Bleed brakes. |
| PREMATURE REAR WHEEL LOCKUP |
1. Contaminated brake linings. |
1. Inspect and clean, or replace pads. Repair source of contamination. |
| 2. EVBP not functioning. |
2. Refer to the ABS service information and appropriate diagnostic information. |
| STOP LAMPS STAY ON |
1. Stop lamp switch out of adjustment. |
1. Replace stop lamp switch. Refer to SWITCH, STOP LAMP, REMOVAL
. |
| 2. Brake pedal binding. |
2. Inspect and replace as necessary. |
| 3. Power brake booster not allowing pedal to return completely. |
3. Replace power brake booster. |
| VEHICLE PULLS TO RIGHT OR LEFT ON BRAKING |
1. Frozen brake caliper piston. |
1. Replace frozen piston or caliper. Bleed brakes. |
| 2. Contaminated brake lining (most likely front lining). |
2. Inspect and clean, or replace pads. Repair source of contamination. |
| 3. Pinched brake lines. |
3. Replace pinched line. |
| 4. Leaking piston seal. |
4. Replace piston seal or brake caliper. |
| 5. Suspension problem. |
5. Refer to FRONT SUSPENSION & WHEEL ALIGNMENT
. |
| PARKING BRAKE - EXCESSIVE HANDLE TRAVEL |
1. Parking brake shoes out of adjustment. |
1. Adjust parking brake shoes. |