GM Service Manual Online
For 1990-2009 cars only

Auxiliary Air Conditioning Evaporator Rear Tube Replacement Liquid Line

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure

  1. Recover the A/C system. Refer to Refrigerant Recovery and Recharging .

  2. Object Number: 1342266  Size: SH
  3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  4. Remove the engine exhaust. Refer to Exhaust System Replacement .
  5. Remove the auxiliary rear liquid line nut from the auxiliary evaporator.
  6. Disconnect the auxiliary rear liquid line from the auxiliary evaporator.

  7. Object Number: 1391667  Size: SH
  8. Loosen the auxiliary rear liquid line to the auxiliary front liquid line fitting (1).
  9. Remove the auxiliary rear liquid line from the body retainers.
  10. Remove the auxiliary rear liquid line from the vehicle.
  11. Remove and discard the O-rings from the auxiliary rear liquid line.

Installation Procedure


    Object Number: 1391667  Size: SH
  1. Install new O-rings to the auxiliary rear liquid line . Refer to O-Ring Replacement .
  2. Install the auxiliary rear liquid line to the vehicle.
  3. Install the auxiliary rear liquid line to the body retainers.
  4. Connect the rear auxiliary A/C line to the front auxiliary front liquid line.
  5. Notice: Refer to Fastener Notice in the Preface section.

  6. Install the liquid line fitting (1).
  7. Tighten
    Tighten the fitting to 9 N·m (80 lb in).

  8. Connect the auxiliary rear liquid line to the auxiliary evaporator.

  9. Object Number: 1342266  Size: SH
  10. Install the auxiliary rear liquid line nut to the auxiliary evaporator.
  11. Tighten
    Tighten the nut to 9 N·m (80 lb in).

  12. Install the engine exhaust. Refer to Exhaust System Replacement .
  13. Lower the vehicle.
  14. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  15. Leak test the fittings of the components using J 39400-A .