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Home › Chevrolet › 2007 › Cutaway 4.8 V › Repair and Diagnosis › Brakes › Anti-Lock Brake System, Traction Control System & Stability Control System › Repair Instructions › Brake Pressure Modulator Valve Pre-Charge Pump Replacement › Removal Procedure

Removal Procedure

    Fig 1: Identifying Master Cylinder Components
    GM1372862Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Brake Fluid Irritant Caution .
    NOTE: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the left front wheel and tire. Refer to Tire and Wheel Removal and Installation .
  3. Remove the inner fender splash shield.
  4. Disconnect the pre-charge pump (PCP) motor.
  5. Remove the PCP electrical connector from the PCP bracket.
  6. Remove the engine harness from the PCP bracket.
  7. Remove the engine harness retainer from the inner fender above the PCP.
  8. Remove the connector C100, above the engine harness, from the inner fender.
  9. Move the connector C100 and the engine harness up, away from the PCP.
    10. Fig 2: Identifying Brake Fluid Outlet Pipe
    GM1372859Courtesy of GENERAL MOTORS CORP.
  10. Loosen and remove the brake fluid outlet pipe (5). Cap or plug the brake pipe to prevent contamination and brake fluid loss.
    11. Fig 3: Identifying Master Cylinder Components
    GM1372862Courtesy of GENERAL MOTORS CORP.
  11. Crimp the inlet hose (4) from the master cylinder to the PCP (2) to prevent fluid from leaking out and draining the master cylinder reservoir.
    12. IMPORTANT: The area around the PCP MUST be free from loose dirt to prevent contamination of disassembled ABS components.
  12. Remove the inlet hose clamp (3) from the PCP assembly (2) inlet port.
  13. Remove the inlet hose (4) from the PCP assembly (2) inlet port.
    14. Fig 4: Identifying Brake Fluid Outlet Pipe
    GM1372859Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: For installation, the PCP mounting bracket top bolt is longer than the mounting bracket side bolts.
  14. Remove the PCP mounting bracket top bolt (1) and mounting bracket side bolts (3).
  15. Remove the PCP assembly (2) from the vehicle.
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