INSPECTION PROCEDURE 1: Vehicle Pulls To One Side When Brakes Are Applied: Diagnosis
WARNING: This page is about a different variant/trim than selected.
- STEP 1. Check for oil, water, etc., on the pad contact surface of all brakes.
Q: Is oil, water, etc., on the pad contact surface?
- YES: Replace the part and determine the source/cause of foreign material. Then go to Step 5.
- NO: Go to Step 2.
- STEP 2. Check disk brake pistons for smooth operation.
- With engine not running, depress the brake pedal rapidly several times to deplete booster vacuum reserves.
- Test each disk brake assembly one at a time.
- Remove the lower caliper bolt, then remove caliper from mount.
- Have an assistant slowly depress the brake pedal. Confirm piston(s) extend slowly and smoothly with no jumpiness. Repeat for each disk brake assembly.
Q: Do (does) the piston(s) move correctly?
- YES: Go to Step 3.
- NO: Disassemble and inspect the brake assembly (Front: refer to DISASSEMBLY AND ASSEMBLY , Rear: refer to DISASSEMBLY AND ASSEMBLY ). Then go to Step 5.
- STEP 3. Check brake disk(s) for runout.
Refer to DISK BRAKE ROTOR CHECK .
Q: Is runout outside of specifications?
- YES: Repair or replace the brake disk(s) as necessary. Then go to Step 5.
- NO: Go to Step 4.
- STEP 4. Check brake disks for correct thickness.
Refer to DISK BRAKE ROTOR CHECK .
Q: Is the thickness outside of specifications?
- YES: Repair or replace the brake disk(s) as necessary. Then go to Step 5.
- NO: Perform the brake line bleeding Refer to BLEEDING . Then go to Step 5.
- STEP 5. Retest the system.
Q: Is the symptom eliminated?
- YES: The procedure is complete.
- NO: Start over at Step 1. If a new symptom appears, refer to the appropriate SYMPTOM CHART .