GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 297294  Size: SH
  1. Recover the refrigerant. 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 negative battery cable.
  4. Remove the upper and lower radiator supports. Refer to Radiator Support Replacement in Engine Cooling.
  5. Remove the evaporator tube - front to condenser retaining bolt.
  6. Important: Cap or tape the open evaporator tube - front and the condenser immediately.

  7. Disconnect the evaporator tube - front from the condenser, discard the O-ring seal and cap or tape the evaporator tube - front and the condenser to prevent contamination.
  8. Reposition the evaporator tube - front.

  9. Object Number: 297225  Size: SH
  10. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  11. Important: Prior to removal, take note of the compressor hose routing and orientation between the compressor and condenser.

  12. Using a back-up wrench on the condenser fitting (2), loosen the compressor hose fitting (1) from the condenser.

  13. Object Number: 82073  Size: SH

    Important: Cap or tape the open compressor hose and the condenser immediately.

  14. Disconnect the compressor hose from the condenser, discard the O-ring seal and cap or tape the compressor hose and the condenser to prevent contamination.

  15. Object Number: 296225  Size: SH
  16. Lower the vehicle; leave the vehicle on the hoist.
  17. Carefully raise the condenser along the radiator just enough to release the condenser tabs (1) from the radiator slots (2) and the condenser tube from the tube retainer (3).

  18. Object Number: 175435  Size: SH
  19. Carefully separate the condenser from the radiator.
  20. Remove the condenser from the vehicle.
  21. Inspect the condenser insulators along the LH and RH front edges of the condenser for wear or damage.

Installation Procedure


    Object Number: 296222  Size: SH
  1. Replace the condenser insulators (2), if necessary:
  2. 1.1. Remove all traces of the old insulators.
    1.2. Using isopropyl alcohol, or equivalent, wipe clean the front surface of the condenser LH and RH edges.
    1.3. Remove the paper backing (1) from the new insulators (2).
    1.4. Align and install the insulators (2) while keeping a gap (3) of 1 mm (0.039 in) between the insulators (2) and the inner edges of the condenser, as shown.

    Object Number: 175435  Size: SH
  3. Position the condenser into the vehicle.
  4. Carefully join the condenser to the radiator so that the condenser is above the installed position.

  5. Object Number: 296225  Size: SH
  6. Carefully lower the condenser along the radiator to secure the condenser tabs (1) to the radiator slots (2) and the condenser tube to the tube retainer (3).

  7. Object Number: 297232  Size: SH
  8. Raise the vehicle.
  9. Route the compressor hose to the condenser as noted prior to removal.
  10. Remove the cap or tape from the compressor hose and the condenser.
  11. Using a lint-free clean, dry cloth, carefully clean the sealing surfaces of the compressor hose and the condenser.
  12. Lightly coat the new O-ring seal (1) with mineral base 525 viscosity refrigerant oil.
  13. Important: DO NOT allow any of the mineral base 525 viscosity refrigerant oil on the O-ring seal to enter the refrigerant system.

  14. Carefully slide the new O-ring seal (1) onto the compressor hose until seated.

  15. Object Number: 82073  Size: SH
  16. Install the compressor hose to the condenser.
  17. Orientate the compressor hose to the condenser as noted prior to removal.

  18. Object Number: 297225  Size: SH

    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.

  19. Using a back-up wrench on the condenser fitting (2), secure the compressor hose fitting (1) to the condenser.
  20. Tighten
    Tighten the compressor hose fitting to the condenser to 24 N·m (17 lb ft).

  21. Lower the vehicle.

  22. Object Number: 297228  Size: SH
  23. Remove the cap or tape from the evaporator tube - front and the condenser.
  24. Using a lint-free clean, dry cloth, carefully clean the sealing surfaces of the evaporator tube - front and the condenser.
  25. Lightly coat the new O-ring seal (1) with mineral base 525 viscosity refrigerant oil.
  26. Important: DO NOT allow any of the mineral base 525 viscosity refrigerant oil on the O-ring seal to enter the refrigerant system.

  27. Carefully slide the new O-ring seal (1) onto the evaporator tube - front until seated.
  28. Leave a light coating of the refrigerant oil to remain on the evaporator tube - front in the area indicated (2) ONLY.


    Object Number: 297294  Size: SH
  29. Install the evaporator tube - front to the condenser.
  30. Install the evaporator tube - front to condenser retaining bolt.
  31. Tighten
    Tighten the evaporator tube - front to condenser retaining bolt to 27 N·m (20 lb ft).

  32. Install the upper and lower radiator supports. Refer to Radiator Support Replacement in Engine Cooling.
  33. Connect the negative battery cable.
  34. Tighten
    Tighten the negative battery cable bolt to 15 N·m (11 lb ft).

  35. Program the transmitters. Refer to Transmitter Programming/Synchronization in Keyless Entry.
  36. Evacuate and charge the refrigerant system. Refer to Refrigerant Recovery and Recharging .
  37. Check the condenser joints for leaks. Refer to Leak Testing .