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. Object Number: 1118015  Size: SH
  3. Remove the evaporator tube to TXV nut (1).
  4. Disconnect the evaporator tube from the TXV.
  5. Remove and discard the sealing washers.
  6. Important: Cap or tape the open evaporator inlet and outlet tubes immediately to prevent contamination of the refrigerant system.

  7. Cap off the evaporator inlet and outlet tube.

  8. Object Number: 791147  Size: SH
  9. Remove the TXV to evaporator bolts.
  10. Remove the TXV from the evaporator core.
  11. Remove and discard the sealing washers.

Installation Procedure

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

  2. Object Number: 791147  Size: SH
  3. Install the TXV to the evaporator core.
  4. Notice: Refer to Fastener Notice in the Preface section.

  5. Install the TXV to evaporator bolts.
  6. Tighten
    Tighten the bolts to 7 N·m (62 lb in).

  7. Remove the cap or tape from the evaporator inlet and outlet tubes.
  8. Install the new sealing washers onto the evaporator inlet and outlet tubes. Refer to Sealing Washer Replacement .
  9. Install the evaporator tube to the TXV.

  10. Object Number: 1118015  Size: SH
  11. Install the evaporator tube nut (1).
  12. Tighten
    Tighten the nut to 17 N·m (13 lb ft).

  13. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  14. Leak test the fittings of the component using J 39400-A .