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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 222 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Compressor Replacement (4.8L, 5.3L, 6.0L) >> Removal Procedure

Removal Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, 2003 Chevrolet RV Cutaway, and 2003 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
  1. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging .
  2. Raise the vehicle.
  3. Remove the splash shield.
  4. Install a ratchet into the air conditioning (A/C) belt tensioner adapter opening.
  5. Rotate the belt tensioner clockwise in order to relieve the tension on the belt.
  6. Remove the A/C belt from the pulley.
  7. Remove the lower compressor mounting bolts.
  8. Partially lower the vehicle to access the compressor through the wheel opening.
  9. Remove the upper compressor mounting bolts.
  10. Remove the suction hose bolt.
  11. Remove the suction hose from the compressor.
  12. Remove the discharge hose bolt from the compressor.
  13. Remove the discharge hose from the compressor.
  14. Disconnect the compressor clutch electrical connector.
  15. Disconnect the high pressure switch connector.
  16. Lower the vehicle.
  17. Remove the fan shroud. Refer to Fan Shroud Replacement in Engine Cooling .
  18. Remove the compressor.

    Important  : When removing the sealing washers, prevent dirt and foreign material from getting onto the following sealing surfaces:

    • The washers
    • The hose fitting
    • The compressor ports

    Use a lint-free cloth in order to clean all of the sealing surfaces.

  19. Remove the compressor sealing washers. Discard the compressor sealing washers.
  20. If replacing the compressor, balance the refrigerant oil. Refer to Compressor Oil Balancing .
    Fig 1: Removing A/C Belt From Pulley
    G01216895Courtesy of GENERAL MOTORS CORP.
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