GM Service Manual Online
For 1990-2009 cars only

Air Conditioning Compressor Hose Replacement L61

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure


    Object Number: 588312  Size: SH
  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  2. Disconnect the refrigerant pressure sensor electrical connector.

  3. Object Number: 588318  Size: SH
  4. Remove the bolt holding the compressor hose bracket to the fan shroud.
  5. Remove the compressor hose to condensor block fitting nut.
  6. Remove the compressor hose from the condenser.
  7. Remove and discard the seal washer.
  8. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  9. Remove the right front fender liner. Refer to Front Fender Liner Replacement in Body Front End.

  10. Object Number: 588321  Size: SH
  11. Remove the nut holding the compressor hose to the accumulator.
  12. Remove the compressor hose from the accumulator.
  13. Remove and discard the seal washer.

  14. Object Number: 784268  Size: SH
  15. Remove the block fitting nut from the compressor.
  16. Remove the compressor hose assembly from the compressor.
  17. Remove compressor hose assembly from the vehicle.
  18. Remove and discard the compressor sealing washers.

Installation Procedure


    Object Number: 784268  Size: SH
  1. Install the compressor hose assembly.
  2. Install new sealing washers at the compressor ports Refer to Sealing Washer Replacement .
  3. Install the compressor hose set block fitting nut to the compressor.
  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 block fitting nut to the compressor.
  6. Tighten
    Tighten the nut to 16 N·m (12 lb ft).


    Object Number: 588321  Size: SH
  7. Install a new seal washer on the accumulator end of the compressor hose Refer to Sealing Washer Replacement .
  8. Install the compressor hose to the accumulator.
  9. Install the compressor hose nut to the accumulator.
  10. Tighten
    Tighten the fitting nut to 25 N·m (18 lb ft).

  11. Install the right front fender liner. Refer to Front Fender Liner Replacement in Body Front End.
  12. Lower the vehicle.

  13. Object Number: 588318  Size: SH
  14. Install a NEW seal washer on the condenser end of the compressor hose.
  15. Install the compressor hose to the condenser.
  16. Install the compressor hose nut to the condenser.
  17. Tighten
    Tighten the fitting nut to 25 N·m (18 lb ft).

  18. Install the compressor hose bracket and bolt to the fan shroud.
  19. Tighten
    Tighten the bolt to 10 N·m (89 lb in).


    Object Number: 588312  Size: SH
  20. Connect the refrigerant pressure sensor electrical connector.
  21. Recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging .
  22. Leak test the fittings of the repaired or reinstalled component using the J 39400-A .

Air Conditioning Compressor Hose Replacement LP1

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure


    Object Number: 588312  Size: SH
  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  2. Disconnect the refrigerant pressure sensor electrical connector.

  3. Object Number: 588318  Size: SH
  4. Remove the bolt holding the compressor hose bracket to the fan shroud.
  5. Remove the compressor hose to condenser block fitting nut.
  6. Remove the compressor hose from the condenser.
  7. Remove and discard the seal washer.
  8. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  9. Remove the right front fender liner. Refer to Front Fender Liner Replacement in Body Front End.

  10. Object Number: 588321  Size: SH
  11. Remove the nut holding the compressor hose to the accumulator.
  12. Remove the compressor hose from the accumulator.
  13. Remove and discard the seal washer.

  14. Object Number: 588305  Size: SH
  15. Remove the block fitting bolt from the compressor.
  16. Remove the compressor hose assembly from the compressor.
  17. Remove the compressor hose assembly from the vehicle.
  18. Remove and discard the compressor sealing washers.

Installation Procedure


    Object Number: 588305  Size: SH
  1. Install the compressor hose assembly.
  2. Install NEW sealing washers at the compressor ports.
  3. Install the compressor hose assembly block fitting to the compressor.
  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 block fitting bolt to the compressor.
  6. Tighten
    Tighten the bolt to 33 N·m (24 lb ft).


    Object Number: 588321  Size: SH
  7. Install a NEW seal washer on the accumulator end of the compressor hose.
  8. Install the compressor hose to the accumulator.
  9. Install the compressor hose nut to the accumulator.
  10. Tighten
    Tighten the fitting nut to 25 N·m (18 lb ft).

  11. Install the right front fender liner. Refer to Front Fender Liner Replacement in Body Front End.
  12. Lower the vehicle.

  13. Object Number: 588318  Size: SH
  14. Install a NEW seal washer on the condenser end of the compressor hose.
  15. Install the compressor hose to the condenser.
  16. Install the compressor hose nut to the condenser.
  17. Tighten
    Tighten the nut to 25 N·m (18 lb ft).

  18. Install the compressor hose bracket and bolt to the fan shroud.
  19. Tighten
    Tighten the compressor hose bracket bolt to 10 N·m (89 lb in).


    Object Number: 588312  Size: SH
  20. Connect the refrigerant pressure sensor electrical connector.
  21. Recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging .
  22. Leak test the fittings of the repaired or reinstalled component using the J 39400-A .