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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 808 (Antilock Brake System With TCVS & VSES) >> Repair Instructions >> Brake Pressure Modulator Valve Pre-Charge Pump Replacement >> Removal Procedure

Removal Procedure

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CAUTION: Brake fluid may irritate eyes and skin. In case of eye contact rinse thoroughly with water, skin contact wash with soap and water, or if ingested consult a physician immediately.
NOTE: Avoid spilling brake fluid onto painted surfaces, electrical connections, wiring, or cables. Brake fluid will damage painted surfaces and cause corrosion to electrical components. If any brake fluid comes in contact with painted surfaces, immediately flush the area with water. If any brake fluid comes in contact with electrical connections, wiring, or cables, use a clean shop cloth to wipe away the fluid.
  1. Disconnect the negative battery cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE in Engine Electrical.
    NOTE: Avoid spilling brake fluid onto painted surfaces, electrical connections, wiring, or cables. Brake fluid will damage painted surfaces and cause corrosion to electrical components. If any brake fluid comes in contact with painted surfaces, immediately flush the area with water. If any brake fluid comes in contact with electrical connections, wiring, or cables, use a clean shop cloth to wipe away the fluid.
  2. Crimp the inlet hose (1) from the master cylinder to the Pre-Charge Pump (PCP) (2) to prevent fluid from leaking out and draining the master cylinder reservoir.

    Important:  The area around the pre-charge pump MUST be free from loose dirt to prevent contamination of disassembled ABS components.

    3. Fig 1: Crimping Inlet Hose From Master Cylinder To Pre-Charge Pump (PCP)
    G01457151Courtesy of GENERAL MOTORS CORP.
  3. Remove the inlet hose clamp from the PCP assembly inlet port.
  4. Remove the inlet hose (1) from the PCP assembly inlet port.
  5. Loosen and remove the brake fluid outlet pipe (3). Cap or plug the brake pipe to prevent contamination and brake fluid lose.
  6. Disconnect the PCP electrical connector from the vehicle connector harness.
  7. Remove the PCP electrical connector from the mounting bracket.
  8. Remove the PCP mounting bracket front bolt (2) and mounting bracket side bolts (3).
  9. Remove the PCP assembly (1) from the vehicle.
    10. Fig 2: Removing PCP Mounting Bracket Front Bolt And Mounting Bracket Side Bolts
    G01457152Courtesy of GENERAL MOTORS CORP.
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