GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 39500-B A/C Refrigerant Recovery, Recycling and Recharging (ACR4) System

  1. Recover the refrigerant from the system. Refer to Refrigerant Recovery and Recharging
  2. Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  3. Disconnect the battery.
  4. Remove the accessory drive belt. Refer to Drive Belt Replacement in Engine Mechinical.
  5. Raise and support vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  6. Remove the front air deflector. Refer to Front Air Deflector Replacement in Body Front End.
  7. Remove the right front tire. Refer to Tire and Wheel Removal and Installation in Suspension.

  8. Object Number: 304953  Size: SH
  9. Remove the compressor splash shield (2) and the retainers (1).
  10. Remove the right wheelhouse extension. Refer to Front Bumper Fascia Extension Replacement in Body Front End.
  11. Disconnect the brake line retaining clip from frame.

  12. Object Number: 304954  Size: SH
  13. Remove the bolt that secures the compressor hose assembly (1).

  14. Object Number: 284223  Size: SH
  15. Disconnect the compressor electrical connector.

  16. Object Number: 304949  Size: SH
  17. Remove the compressor mounting bolts.
  18. Remove the A/C Compressor mounting stud.
  19. Rotate the compressor, so that the compressor may exit through the wheelhouse extension opening.
  20. Remove the compressor.

Installation Procedure

Tools Required

J 39400 Electronic Halogen Leak Tester


    Object Number: 304949  Size: SH
  1. Install the compressor through the wheelhouse extension.
  2. Install mounting stud.
  3. Install the remaining mounting fasteners.
  4. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  5. Install the compressor mounting bolts.
  6. Tighten
    Tighten the compressor mounting bolts to 25 N·m (18 lb ft).


    Object Number: 284223  Size: SH
  7. Connect the compressor electrical connector.

  8. Object Number: 304954  Size: SH
  9. Connect the compressor hose assembly to the compressor.
  10. Tighten
    Tighten the compressor hose assembly (1) to the compressor to 30 N·m (20 lb ft).

  11. Connect the brake line retaining clip to the frame.

  12. Object Number: 304953  Size: SH
  13. Install the compressor splash shield (2) and the retainers (1).
  14. Install right front tire. Refer to Tire and Wheel Removal and Installation
  15. Lower the vehicle.
  16. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  17. Leak test the A/C system. Refer to Leak Testing
  18. Install the wheelhouse extension. Refer to Front Bumper Fascia Extension Replacement in Body Front End.
  19. Install the front air deflector. Refer to Front Air Deflector Replacement in Body Front End.