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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 677 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Compressor Replacement (L18 w/Harrison) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Recover the refrigerant. Refer to Refrigerant Recovery & Recharging .
  2. Remove the air conditioning (A/C) drive belt.
  3. Raise and support the vehicle.
  4. Remove the right front tire and wheel assembly.
  5. Remove the right wheel house panel.
  6. Remove the compressor hose assembly bolt from the A/C compressor.
  7. Remove the compressor hose assembly from the A/C compressor.
  8. Discard the sealing washers. Cap all of the openings.
  9. Disconnect the electrical connections.
  10. Remove the 3 A/C compressor mounting bolts. The lower right bolt will stay with the compressor due to a lack of clearance.
  11. Remove the A/C compressor from the bracket through the fender well.
    12. Fig 1: A/C Compressor
    G01666440Courtesy of GENERAL MOTORS CORP.
  12. If replacing the A/C compressor, drain and measure as much of the oil as possible from the removed compressor.
    1. 12.1. Drain the oil from both the suction and discharge ports of the removed A/C compressor into a clean container.
    2. 12.2. Remove the A/C compressor crankcase oil drain plug and drain the crankcase oil into the same container.
    3. 12.3. Measure and record the amount of oil drained from the removed A/C compressor. This measurement will be used during installation of the replacement A/C compressor.
    4. Properly discard the used PAG oil.
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