GM Service Manual Online
For 1990-2009 cars only

Discharge Hose Replacement LX9

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure

  1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.
  2. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging .

  3. Object Number: 1644328  Size: SH
  4. Remove the discharge hose to condenser nut.
  5. Disconnect the discharge hose from the condenser.
  6. Important: Cap or tape the open A/C components immediately to prevent A/C system contamination.

  7. Cap or tape the discharge port on the condenser.
  8. Remove the lower air baffle. Refer to Radiator Air Baffle Assemblies and Deflectors.

  9. Object Number: 791143  Size: SH
  10. Remove the discharge hose to compressor nut.
  11. Disconnect the discharge hose from the compressor.
  12. Cap or tape the compressor discharge port.
  13. Remove the discharge hose.
  14. Remove and discard the sealing washers.

Installation Procedure

  1. Install a new sealing washer onto the compressor side of the discharge hose. Refer to Sealing Washer Replacement .
  2. Install the discharge hose.
  3. Remove the cap or tape from the compressor discharge port.

  4. Object Number: 791143  Size: SH
  5. Connect the discharge hose to the compressor.
  6. Notice: Refer to Fastener Notice in the Preface section.

  7. Install the discharge hose to compressor nut.
  8. Tighten
    Tighten the nut to 16 N·m (12 lb ft).

  9. Install the lower air baffle. Refer to Radiator Air Baffle Assemblies and Deflectors.
  10. Lower the vehicle.
  11. Install a new seal washer to the condenser side of the discharge hose. Refer to Sealing Washer Replacement .
  12. Remove cap or tape from the discharge port on the condenser.

  13. Object Number: 1644328  Size: SH
  14. Connect the discharge hose to the condenser.
  15. Install the discharge hose to condenser nut.
  16. Tighten
    Tighten the nut to 16 N·m (12 lb ft).

  17. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  18. Leak test the fittings of the component using J 39400-A .
  19. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.

Discharge Hose Replacement LY7

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure

  1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  2. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging .

  3. Object Number: 1644531  Size: SH
  4. Remove the discharge hose to condenser bolt.
  5. Disconnect the discharge hose from the condenser.
  6. Important: Cap or tape the open A/C components immediately to prevent A/C system contamination.

  7. Cap or tape the discharge port on the condenser.
  8. Remove the lower air baffle. Refer to Radiator Air Baffle Assemblies and Deflectors .

  9. Object Number: 1644365  Size: SH
  10. Remove the discharge hose to compressor bolt.
  11. Disconnect the discharge hose from the compressor.
  12. Cap or tape the compressor discharge port.
  13. Remove the discharge hose.
  14. Remove and discard the sealing washers.

Installation Procedure

  1. Install a new sealing washer onto the compressor side of the discharge hose. Refer to Sealing Washer Replacement .
  2. Install the discharge hose.
  3. Remove the cap or tape from the compressor discharge port.

  4. Object Number: 1644365  Size: SH
  5. Connect the discharge hose to the compressor.
  6. Notice: Refer to Fastener Notice in the Preface section.

  7. Install the discharge hose to compressor bolt.
  8. Tighten
    Tighten the bolt to 16 N·m (12 lb ft).

  9. Install the lower air baffle. Refer to Radiator Air Baffle Assemblies and Deflectors .
  10. Lower the vehicle.
  11. Install a new seal washer to the condenser side of the discharge hose. Refer to Sealing Washer Replacement .
  12. Remove cap or tape from the discharge port on the condenser.

  13. Object Number: 1644531  Size: SH
  14. Connect the discharge hose to the condenser.
  15. Install the discharge hose to condenser bolt.
  16. Tighten
    Tighten the bolt to 16 N·m (12 lb ft).

  17. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  18. Leak test the fittings of the component using J 39400-A .
  19. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .