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Home >> Cadillac >> 2004 >> Escalade EXT >> Repair and Diagnosis >> Brakes >> Antilock Brake System, Traction Control System & Stability Control System >> Repair Instructions >> Brake Pressure Modulator Valve Pre-Charge Pump Replacement >> Installation Procedure
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Installation Procedure

  1. Install the PCP (1) into the vehicle. Ensure the bottom of the PCP motor is secured in the bottom mounting grommet on the PCP mounting bracket.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the PCP front and side mounting bracket bolts (2,3).

    Tighten:  Tighten the bolts to 15 N.m (10 lb ft).

  3. Install the PCP electrical connector to the mounting bracket. Check to insure the connector is locked into place.
  4. Connect the PCP electrical connector to the vehicle connector harness.
    5. Fig 1: View Of PCP Assembly & Bolts
    GM828111Courtesy of GENERAL MOTORS CORP.
  5. Remove the cap or plug from the outlet pipe and install the outlet pipe (3) to the PCP (2).

    Tighten:  Tighten the brake fluid outlet pipe nut to 25 N.m (18 lb ft).

  6. Install the inlet hose and clamp (1) to the PCP (2).
    7. Fig 2: View Of Pre-Charge Pump, Inlet Hose & Outlet Pipe
    GM887578Courtesy of GENERAL MOTORS CORP.
  7. Remove the crimping tool from the inlet hose.
  8. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  9. Fill the master cylinder reservoir. Refer to Master Cylinder Reservoir Filling in Hydraulic Brakes.
  10. Using a scan tool, perform a precharge pump bleed procedure. Refer to ABS Automated Bleed Procedure (w/o JL4)  or ABS Automated Bleed Procedure (W/JL4) .
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