Inspection Procedure 6

INSPECTION PROCEDURE 6: Squealing, Groaning or Chattering Noise when Brakes are Applied

DIAGNOSIS

STEP 1. Check the brake drums and lining or brake disc and pads for wear or cutting.
Q: Is there wear or cutting?
YES: Repair or replace the part. Then go to Step 7.
NO: Go to Step 2.

STEP 2. Check the calipers for rust
Q: Is there rust?
YES: Remove the rust. Then go to Step 7.
NO: Go to Step 3.

STEP 3. Check the lining parts for damage.
Q: Is there damage?
YES: Repair or replace the part. Then go to Step 7.
NO: Go to Step 4.

STEP 4. Check whether the lining is dirty or greasy.
Q: Is the lining dirty or greasy?
YES: Clean or replace the part. Then go to Step 7.
NO: Go to Step 5.

STEP 5. Check whether the shoe hold-down springs are weak or the shoe-hold-down pins and springs are loose or damaged.
Q: Is there fault?
YES: Repair or replace the part. Then go to Step 7.
NO: Go to Step 6.

STEP 6.Adjust the brake pedal or brake booster pushrod.
Q: Are the brake pedal and the brake booster pushrod adjusted correctly?
YES: Adjust the brake pedal and the brake booster pushrod. Then go to Step 7.
NO: Go to Step 7.

STEP 7. Recheck symptom.
Q: Is the symptom eliminated?
YES: Diagnosis is complete.
NO: Start over at step 1. If a new symptom surfaces, refer to the symptom chart. Symptom Chart