GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 39400-A Halogen Leak Detector

Removal Procedure

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

  2. Object Number: 1391666  Size: SH
  3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  4. Remove the auxiliary front discharge line to front discharge line quick connect fitting (1). Refer to Air Conditioning Line/Tube Connector Removal/Replacement.
  5. Disconnect the auxiliary front discharge line from the front discharge line.

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

Installation Procedure


    Object Number: 1391667  Size: SH
  1. Install new O-rings to the auxiliary front discharge line. Refer to O-Ring Replacement.
  2. Install the auxiliary front discharge line to the vehicle.
  3. Connect the auxiliary front discharge line to the body retainers.
  4. Connect the auxiliary front discharge line to the auxiliary rear discharge line (1).
  5. Caution: Refer to Fastener Caution in the Preface section.

  6. Install the fitting of the auxiliary front discharge line and tighten the fittings to 9 N·m (80 lb in).
  7. Connect the auxiliary front discharge line to the front discharge line.

  8. Object Number: 1391666  Size: SH
  9. Install the auxiliary front discharge line to front discharge line quick connect fitting (1). Refer to Air Conditioning Line/Tube Connector Removal/Replacement.
  10. Lower the vehicle.
  11. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging.
  12. Leak test the fittings of the component using J 39400-A .