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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1457 (Disc Brake System) >> Repair Instructions >> Brake Rotor Replacement - Rear >> Removal Procedure

Removal Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Refer to Brake Dust Caution in Cautions and Notices.
    Fig 1: View Of Half-Full Master Cylinder Reservoir
    GM787456Courtesy of GENERAL MOTORS CORP.
  1. Inspect the brake fluid level in the brake master cylinder reservoir.
  2. If the brake fluid is midway between the maximum-full point and the minimum allowable level, no brake fluid needs to be removed from the reservoir before proceeding.
    3. Fig 2: View Of Full Master Cylinder Reservoir MAX And MIN Marks
    GM787455Courtesy of GENERAL MOTORS CORP.
  3. If the brake fluid level is higher than midway between the maximum-full point and the minimum allowable level, using an appropriate tool, remove the brake fluid to the midway point before proceeding.
  4. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  5. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
    6. Fig 3: Compressing Rear Brake Caliper Piston
    GM127Courtesy of GENERAL MOTORS CORP.
  6. Compress the rear brake caliper pistons.
    1. Install a large C-clamp over the top of the brake caliper housing and against the back of the outboard brake pad.
    2. Slowly tighten the C-clamp until the pistons push into the brake caliper enough to slide the brake caliper off the rotor.
    3. Remove the C-clamp from the brake caliper.
    7. Fig 4: View Of Caliper Mounting Bracket & Rotor
    GM748570Courtesy of GENERAL MOTORS CORP.
  7. Remove the rear brake caliper mounting bracket.
    8. Fig 5: Removing Brake Rotor Retaining Clips
    GM357057Courtesy of GENERAL MOTORS CORP.
  8. Remove the brake rotor retaining clips, if equipped.
    9. Fig 6: View Of Rotor From Hub Assembly Removal Using J-46277 & J 2619-01
    GM1471360Courtesy of GENERAL MOTORS CORP.
  9. If the brake rotor is stuck, perform the following:
    1. Assemble J-46277  to J 2619-01  . See Special Tools and Equipment .
    2. Insert J-46277  between the rotor friction surfaces in the vent section of the rotor. See Special Tools and Equipment . DO NOT place the J-46277  on the rotor friction surface.
    3. Using the J-46277  and J 2619-01  , release the rotor from the hub assembly. See Special Tools and Equipment .
    10. Fig 7: Separating Rotor From Axle Flange
    GM357011Courtesy of GENERAL MOTORS CORP.
    NOTE: Whenever the rotor has been separated from the axle flange, clean any rust or foreign material from the mating surface of the axle flange and brake rotor. Failure to do this may result in increased lateral runout of the rotor and brake pulsation.
    IMPORTANT: If the brake rotor is not going to be replaced but just removed from the front hub to be refinished, mark the brake rotor left or right and the relationship of the brake rotor and a wheel stud. In doing so, it will reduce the possibility of vibration in the brake system.
  10. Remove the brake rotor.
    11. Fig 8: Cleaning Brake Rotor To Rear Axle Flange Contact Area
    GM409878Courtesy of GENERAL MOTORS CORP.
  11. Using the J 42450-A  , clean the brake rotor to the rear axle flange contact area. See Special Tools and Equipment .
  12. Refinish the rotor, if necessary. Refer to Brake Rotor Refinishing .
  13. Inspect the park brake components. If any of the following conditions are found, replace the affected parts.
    • Bent or broken hold down spring
    • Broken, cracked, or worn brake shoe lining
    • Bent or damaged brake shoe
    • Worn, bent, or damaged backing plate
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