GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure

  1. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging .
  2. Remove the right wheelhouse panel. Refer to Wheelhouse Panel Replacement .

  3. Object Number: 769765  Size: SH
  4. Remove the evaporator outlet tube retaining nut (4) from the evaporator.
  5. Remove the evaporator outlet tube retaining nut (5) from the accumulator.
  6. Remove the nut (2) from the accumulator bracket.
  7. Remove the evaporator outlet tube.
  8. Remove the sealing washers.

Installation Procedure

  1. Install the new sealing washers. Refer to Sealing Washer Replacement .

  2. Object Number: 769765  Size: SH
  3. Install the evaporator outlet tube to the accumulator.
  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 evaporator outlet tube retaining nut to the accumulator.
  6. Tighten
    Tighten the nut to 16 N·m (12 lb ft).

  7. Install the evaporator outlet tube to the evaporator.
  8. Tighten
    Tighten the nut to 16 N·m (12 lb ft).

  9. Install the evaporator outlet tube retaining nut.
  10. Tighten
    Tighten the nut to 16 N·m (12 lb ft).

  11. Install the nut (2) to the accumulator bracket.
  12. Tighten
    Tighten the nut to 9 N·m (80 lb in).

  13. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  14. Install the right wheelhouse panel. Refer to Wheelhouse Panel Replacement.
  15. Leak test the fittings of the component using the J 39400-A .