Noisy brakes create complaints

Repair calls for brake shoe, spring clip replacement

By: Eric Seifert

Figure 1

SUBJECT VEHICLE: 2002-2003 Cadillac Escalade, Escalade EXT and Chevrolet Avalanche 1500 Series Models; 1999-2003 Chevrolet Silverado 1500 and GMC Sierra 1500 Series pickups; 2000-2003 Chevrolet Suburban, Tahoe 1500 and GMC Yukon, Yukon XL 1500 Series Models.

COMPLAINT: Intermittent scraping noise from the rear of the vehicle while driving.

CAUSE/SOLUTION: This condition may be due to the parking brake shoe contacting the drum-in-hat rotor without the parking brake being applied. To correct the condition, replace the parking brake shoe and install a redesigned spring clip retainer.

The driver of a Cadillac Escalade, Chevy Avalanche or other GM truck may complain of a “scraping” noise intermittently coming from the rear of the truck while driving. This condition may be due to the parking brake shoe contacting the drum-in-hat rotor without the parking brake being applied, causing premature wear on the shoe lining.

Following the repair procedure outlined here, replace the parking brake shoe(s), and install a newly designed spring clip retainer from the parking brake retainer spring clip kit.

Parts information

Part number                         Description

88982875                             Parking brake shoe kit

88982879                             Parking brake retainer spring clip kit

12346139    

(Canada: 10953463)         Brake parts cleaner

12345493

(Canada: 10953488)         Red Loctite 272TM or equivalent

Tool information

Part number                        Description
J46277                                  Rotor removal tool*
J6125B                                  Slide hammer*
J41013                                  Rotor resurfacing kit*

*or equivalent

Repair procedure

1. Raise and support the vehicle following appropriate safety precautions.

2. Remove the tire and wheel.

3. Relieve the tension on the parking brake cables by loosening the equalizer nut.

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Related Topics: Brakes, Noise, Vibration, Harshness, NVH

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