GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure

  1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls -3.4L.
  2. Disconnect the cruise control module electrical connector.
  3. Remove the cruise control module from the mounting bracket and reposition aside.

  4. Object Number: 826649  Size: SH
  5. Remove the cruise control module mounting bracket bolts.
  6. Remove the cruise control module mounting bracket.
  7. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging .
  8. Remove the wiper module cover. Refer to Wiper Module Cover Replacement in Wipers/Washer Systems.
  9. Remove the left wiper arm linkage nuts.
  10. Reposition the left wiper arm linkage for access.

  11. Disconnect the vacuum hose from the booster and reposition.

  12. Object Number: 628874  Size: SH
  13. Remove the evaporator outlet tube to TXV nut.
  14. Disconnect the evaporator outlet tube and evaporator inlet tube from the TXV.
  15. Disconnect the evaporator inlet tube from the evaporator outlet tube.
  16. Important: Cap or tape the open A/C refrigerant tubes and A/C refrigerant components immediately to prevent system contamination

  17. Cap or tape the TXV.

  18. Object Number: 651477  Size: SH
  19. Remove the evaporator outlet tube bracket bolt.
  20. Disconnect the electrical connector on the evaporator outlet tube bracket.

  21. Object Number: 791741  Size: SH
  22. Remove the evaporator outlet tube to suction hose fitting bolt (1).
  23. Disconnect the evaporator outlet tube from the compressor suction hose.
  24. Cap or tape the compressor suction hose.
  25. Remove the evaporator outlet tube from the vehicle.
  26. Remove and discard the sealing washers.

Installation Procedure

  1. Using a lint-free clean, dry cloth, carefully clean the sealing surfaces of the A/C refrigerant tubes and the A/C refrigerant components.
  2. Important: Flat washer type seals do not require lubrication.

  3. Install new sealing washers to the evaporator outlet tube.
  4. Install the evaporator outlet tube to the vehicle.
  5. Remove the cap or tape from the compressor suction hose.
  6. Connect the evaporator outlet tube to the compressor suction hose.

  7. Object Number: 791741  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.

  8. Install the evaporator outlet tube bolt (1) at the compressor suction hose.
  9. Tighten
    Tighten the bolt to 16 N·m (12 lb ft).

  10. Connect the evaporator inlet tube to the evaporator outlet tube.
  11. Remove the cap or tape from the TXV.
  12. Connect the evaporator inlet and outlet tubes to the TXV.

  13. Object Number: 628874  Size: SH
  14. Install the evaporator outlet tube nut at the TXV.
  15. Tighten
    Tighten the nut to 16 N·m (12 lb ft).


    Object Number: 651477  Size: SH
  16. Install the evaporator outlet tube bracket bolt.
  17. Tighten
    Tighten the bolt to 5.5 N·m (48.7 lb in).

  18. Connect the vacuum hose to the brake booster.
  19. Connect the electrical connector on the evaporator outlet tube bracket.
  20. Install the left wiper arm linkage.
  21. Install the left wiper arm linkage nuts.
  22. Tighten
    Tighten the nuts to 5 N·m (44 lb in).

  23. Install the wiper module cover. Refer to Wiper Module Cover Replacement in Wipers/Washer Systems.

  24. Object Number: 826649  Size: SH
  25. Install the cruise control module mounting bracket.
  26. Install the cruise control module mounting bracket bolts.
  27. Tighten
    Tighten the bolts to 6 N·m (53 lb in).

  28. Install the cruise control module to the mounting bracket.
  29. Connect the cruise control module electrical connector.
  30. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  31. Leak test the fittings of the component using J 39400-A .
  32. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls -3.4L.