Brakes - Pedal Squeak
88buick02Bulletin 88-5-5
Date MAR. '88
Ref. No. 88-051-5
Corp. Ref. No. 805002
SUBJECT: ANTI-LOCK BRAKE PEDAL SQUEAK
MODELS AFFECTED: 1988 ELECTRA/PARK AVENUE MD LESABRE VITH JN4 OPTION
Condition: High pitched squeak which may occur when the brake pedal is lightly depressed, primarily at the beginning of the pedal stroke.
FIGURE 1:
FIGURE 2:
Cause: The condition may be caused by contact between the spring cage of the push rod bracket and the spring retainer (Figures 1 and 2).
Correction:
1. Remove the hush panel.
FIGURE 2:
2. Inspect for a contact condition between the spring retainer and the spring cage by pulling the rubber boot to the side (Figure 2). (If contact is not present, this bulletin is not applicable.)
FIGURE 3:
3. Locate the point where the left side support leg of the cage connects to the pushrod pass through surface. Apply a small force between this point and the steering column support bracket to move the cage assembly to the right, toward center of vehicle (Figure 3, Point A). Do not apply force on the cage leg (Figure 3, Point B). Move the cage so that approximately 2 mm of clearance is available between the cage and retainer. Use a flat blade tool at least one half inch wide to move the cage.
4. Verify visually that the interference condition is no longer present by again pulling the boot to the side. Verify that no bending of the support leg of the bracket occurred. Verify that the squeak condition is no longer present.
5. Verify that brake pedal travel is not restricted or impaired. Check for free wheel rotation. Verify proper stop lamp switch and cruise switch adjustment.
6. Reinstall the hush panel.
WARRANTY INFORMATION
Labor Operation Number: T5171
Labor Time: .4 Hour
Trouble Code: 92