Diesel Data: Automotive Repair

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. If equipped with rear disc brakes, go to Step 6.

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: Is the adjustment value come?

YES: Adjust 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 For Inspection Procedues