GM Service Manual Online
For 1990-2009 cars only

Discharge Hose Replacement LY7

Special Tools

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. Caution: Refer to Fastener Caution 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 .

Discharge Hose Replacement LH2/HD Cooling

Special Tools

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. Caution: Refer to Fastener Caution 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 .