GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

    • J 26549-E Expansion Tube Remover
    • J 38042 Dual O-Ring Joint Separator
    • J 39500-B A/C Refrigerant Recovery, Recycling, and Recharging (ACR4) System
  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .

  2. Object Number: 378595  Size: SH
  3. Remove the dual O-ring joint (1) of the condenser outlet using the J 38042 .

  4. Object Number: 378600  Size: SH
  5. Remove the dual O-ring joint of the evaporator inlet using the J 38042 .
  6. Remove the A/C line clips.

  7. Object Number: 247323  Size: SH
  8. Remove the expansion tube from the line using the J 26549-E .

Installation Procedure

Tools Required

J 39400 Electronic Halogen Leak Detector


    Object Number: 247323  Size: SH
  1. With the short screen toward the evaporator, install the expansion tube.
  2. Position the line and install the A/C line clips.

  3. Object Number: 378595  Size: SH
  4. Assemble the dual O-ring joints of the evaporator inlet and the condenser outlet (1).
  5. Hand tighten the dual O-ring joints in order to assure correct line orientation.
  6. 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.

  7. Tighten the dual O-ring connections.
  8. Tighten
    Tighten the dual O-ring connections to 24 N·m (18 lb ft).

  9. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  10. Test the A/C system for leaks. Refer to Leak Testing .