GM Service Manual Online
For 1990-2009 cars only

Discharge Hose Replacement LH2 / HD Cooling

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure

  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  3. Remove the front air deflector retainers.

  4. Object Number: 1335111  Size: SH
  5. Remove the front air deflector.

  6. Object Number: 1387866  Size: SH
  7. Remove the LH front wheel. Refer to Tire and Wheel Removal and Installation .
  8. Remove the LH front splash shield retainers.
  9. Remove the LH front splash shield (1).

  10. Object Number: 1348923  Size: SH
  11. Remove the suction line bolt from the A/C compressor.
  12. Disconnect the suction line from the A/C compressor.
  13. Remove and discard the O-ring.

  14. Object Number: 1348922  Size: SH
  15. Remove the discharge line bolt from the A/C compressor.
  16. Disconnect the discharge line from the A/C compressor.
  17. Remove and discard the O-ring.

  18. Object Number: 1348932  Size: SH
  19. Remove the discharge line to condenser bolt.
  20. Disconnect the discharge line from the condenser.
  21. Remove and discard the O-ring.
  22. Disconnect the push-pin retainer from the front bumper and reposition the air baffle aside.
  23. Remove the discharge line.

Installation Procedure

  1. Install the discharge line.

  2. Object Number: 1348932  Size: SH
  3. Connect the push-pin retainer to the front bumper.
  4. Install a new O-ring to the discharge line at the condenser. Refer to O-Ring Replacement .
  5. Connect the discharge line to the condenser.
  6. Notice: Refer to Fastener Notice in the Preface section.

  7. Install the discharge line to condenser bolt.
  8. Tighten
    Tighten the bolt to 9 N·m (80 lb in).


    Object Number: 1348922  Size: SH
  9. Install a new O-ring to the discharge line at the A/C compressor. Refer to O-Ring Replacement .
  10. Connect the discharge line to the A/C compressor.
  11. Install the discharge line bolt to the A/C compressor.
  12. Tighten
    Tighten the bolt to 9 N·m (80 lb in).


    Object Number: 1348923  Size: SH
  13. Install a new O-ring to the suction line at the A/C compressor. Refer to O-Ring Replacement .
  14. Connect the suction line to the A/C compressor.
  15. Install the suction line bolt to the A/C compressor.
  16. Tighten
    Tighten the bolt to 9 N·m (80 lb in).


    Object Number: 1387866  Size: SH
  17. Install the LH front splash shield (1).
  18. Install the LH front splash shield retainers.
  19. Install the LH front wheel. Refer to Tire and Wheel Removal and Installation .
  20. Remove the front air deflector retainers.

  21. Object Number: 1335111  Size: SH
  22. Install the front air deflector.
  23. Install the front air deflector retainers.
  24. Lower the vehicle.
  25. Evacuate and recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging .
  26. Leak test the fittings of the component using J 39400-A .

Discharge Hose Replacement LY7

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure

  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  3. Remove the front air deflector retainers.

  4. Object Number: 1335111  Size: SH
  5. Remove the front air deflector.
  6. Remove the LH front wheel. Refer to Tire and Wheel Removal and Installation .

  7. Object Number: 1348922  Size: SH
  8. Remove the discharge line bolt from the A/C compressor.
  9. Disconnect the discharge line from the A/C compressor.

  10. Object Number: 1348932  Size: SH
  11. Remove the discharge line to condenser bolt.
  12. Disconnect the discharge line from the condenser.
  13. Remove the discharge line.
  14. Remove and discard the discharge line O-rings.

Installation Procedure

  1. Install new O-rings to the discharge line. Refer to O-Ring Replacement .
  2. Install the discharge line.

  3. Object Number: 1348932  Size: SH
  4. Connect the discharge line to the condenser.
  5. Notice: Refer to Fastener Notice in the Preface section.

  6. Install the discharge line to condenser bolt.
  7. Tighten
    Tighten the bolt to 9 N·m (80 lb in).


    Object Number: 1348922  Size: SH
  8. Connect the discharge line to the A/C compressor.
  9. Install the discharge line bolt to the A/C compressor.
  10. Tighten
    Tighten the bolt to 9 N·m (80 lb in).

  11. Install the LH front wheel. Refer to Tire and Wheel Removal and Installation .
  12. Remove the front air deflector retainers.

  13. Object Number: 1335111  Size: SH
  14. Install the front air deflector.
  15. Install the front air deflector retainers.
  16. Lower the vehicle.
  17. Evacuate and recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging .
  18. Leak test the fittings of the component using J 39400-A .