INSPECTION PROCEDURE 7: Squealing Noise when Brakes are not Applied: Diagnosis
WARNING: This page is about a different variant/trim than selected.
- STEP 1. Check whether the backing plate is bent or loose and interfering with the drum.
Q: Is there a fault?
- YES: Replace the part. Then go to Step 9.
- NO: Go to Step 2.
- STEP 2. Check whether the drum is damaged due to interference with the backing plate or shoe.
Q: Is there any damage?
- YES: Replace the part. Then go to Step 9.
- NO: Go to Step 3.
- STEP 3. Check the brake drum for wear and the shoe spring for damage.
Q: Is there any wear or damage?
- YES: Replace the part. Then go to Step 9.
- NO: Go to Step 4.
- STEP 4. Check the brake disks for rust.
Q: Are the brake disks rusted?
- YES: Remove the rust by using sand paper. If still rusted, turn the rotors with an on-the-car brake lathe. Then go to Step 9.
- NO: Go to Step 5.
- STEP 5. Check the brake pads for correct installation.
Q: Are the pads installed incorrectly?
- YES: Repair the pads. Then go to Step 9.
- NO: Go to Step 6.
- STEP 6. Check the calipers for correct installation.
Q: Are the calipers installed incorrectly?
- YES: Repair the calipers. Then go to Step 9.
- NO: Go to Step 7.
- STEP 7. Check the wheel bearings for end play.
Refer to WHEEL BEARING END PLAY CHECK <Front> or WHEEL BEARING END PLAY CHECK <Rear>.
Q: Does the measured end play exceed the limit?
- YES: Replace the faulty hub assembly. Then go to Step 9.
- NO: Go to Step 8.
- STEP 8. Adjust the brake pedal.
Refer to BRAKE PEDAL CHECK AND ADJUSTMENT .
Q: Is the brake pedal adjusted correctly?
- YES: Go to Step 9.
- NO: Adjust the brake pedal. Then go to Step 9.
- STEP 9. Recheck symptom.
Q: Is the symptom eliminated?
- YES: The procedure is complete.
- NO: Start over at step 1. If a new symptom surfaces, refer to the SYMPTOM CHART .