LaCrosse 2006-2007

Brake Pads

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Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Inspect the fluid level in the brake master cylinder reservoir.
  4.  
  5. If the brake fluid level is midway between the maximum-full point and the minimum allowable level, then no brake fluid needs to be removed from the reservoir before proceeding. If the brake fluid level is higher than midway between the maximum-full point and the minimum allowable level, then remove brake fluid to the midway point before proceeding.
  6.  
  7. Raise and suitably support the vehicle.
  8.  
  9. Remove the tire and the wheel assembly.
  10.  
  11. Hand-tighten 2 wheel lug nuts in order to retain the rotor to the hub.
  12.  
  13. Install a large C-clamp over the top of the caliper housing and against the back of the outboard pad.
  14.  
  15. Slowly tighten the C-clamp until the piston pushes into the caliper bore enough to slide the caliper off the rotor.
  16.  
  17. Remove the C-clamp from the caliper.

    Click image to see an enlarged view

    Fig. Front brake pads and related parts

  18.  
  19. Remove the lower caliper bolt (1).
    WARNING
    Use care to avoid damaging pin boot when rotating caliper.

  20.  
  21. In order to access the pads, rotate the caliper upward and suitably support it.
  22.  
  23. Remove the pads (5) from the caliper bracket (3).
  24.  
  25. Remove the 2 retainer slides (4) from the caliper bracket (3).
  26.  
  27. Inspect all parts for cuts, tears, or deterioration. Replace any damaged parts.
  28.  
  29. Inspect the caliper bolts for corrosion or damage. If corrosion is found, use new caliper bolts when installing the caliper.
  30.  

To install:

  1. Using a C-clamp, bottom the piston into the caliper bore. Use an old brake pad or wooden block across the face of the piston. Do not damage the piston or the caliper boot.
  2.  
  3. Install the 2 retainers to the caliper bracket.
    NOTE
    The wear sensor is on the outside pad. The sensor is positioned at the leading or upward edge of the pad during forward wheel rotation.

  4.  
  5. Install the pads to the caliper anchor bracket.
    WARNING
    Use care to avoid damaging pin boot when rotating caliper.

  6.  
  7. Remove the support and reposition the caliper (2) back down over the front pads.
  8.  
  9. Lubricate the pin bolt and the inner diameter of the bolt boot with GM P/N 18047666, or equivalent. Do not lubricate the threads of the pin bolt.
  10.  
  11. Install the lower caliper bolt. Tighten the caliper bolts to 70 ft. lbs. (95 Nm).
  12.  
  13. Remove the 2 wheel lug nuts retaining the rotor to the hub.
  14.  
  15. Install the tire and the wheel assembly.
  16.  
  17. Lower the vehicle.
  18.  
  19. With the engine OFF, gradually apply the brake pedal to approximately 2 / 3 of its travel distance.
  20.  
  21. Slowly release the brake pedal.
  22.  
  23. Wait 15 seconds, then, repeat steps 10 and 11 until a firm brake pedal is obtained. This will properly seat the brake caliper pistons and brake pads.
  24.  
  25. Fill the brake master cylinder reservoir to the proper level.
  26.  
  27. Burnish the pads and rotors.
  28.  

 
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