GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 39400-A Halogen Leak Detector

Removal Procedure

  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
  2. Disconnect the electrical connector from the A/C recirculation switch.
  3. Remove the A/C recirculation switch from the A/C discharge hose.

  4. Object Number: 798935  Size: SH
  5. Remove the discharge hose bolt (6) from the A/C compressor (4).
  6. Remove the discharge hose (5) from the A/C compressor (4).

  7. Object Number: 798938  Size: SH
  8. Remove the discharge hose nut (1) from the condenser (2).
  9. Remove the discharge hose (3) from the condenser (2).
  10. Remove the discharge hose (3) from the vehicle.
  11. Discard all of the used sealing washers.
  12. Cap all of the A/C system openings.

Installation Procedure

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

  2. Object Number: 798938  Size: SH
  3. Install the discharge hose (3) to the vehicle.
  4. Install the discharge hose (3) to the condenser (2).
  5. Caution: Refer to Fastener Caution in the Preface section.

  6. Install the nut (1) to the condenser (2).
  7. Tighten
    Tighten the nut to 16 N·m (12 lb ft).


    Object Number: 798935  Size: SH
  8. Install the discharge hose (5) to the A/C compressor (4).
  9. Install the discharge hose bolt (6) to the A/C compressor (4).
  10. Tighten
    Tighten the bolt to 16 N·m (12 lb ft).

  11. Install the A/C recirculation switch to the discharge hose (5).
  12. Connect the electrical connector to the A/C recirculation switch.
  13. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging.
  14. Leak test the fittings of the component using the J 39400-A .