GM Service Manual Online
For 1990-2009 cars only

Suction Hose Replacement LHD, LA3, LY9

Tools Required

    • J 39400-A Halogen Leak Detector
    • J 45689 A/C Quick Joint Tool

Removal Procedure

  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .

  2. Object Number: 817526  Size: SH

    Important: The body of the tool should be parallel to the A/C line.

  3. Using the J 45689  (1), disconnect the suction hose from the evaporator by pressing the probe end into the two small openings in the plastic quick joint.

  4. Object Number: 840242  Size: SH
  5. Remove the suction hose retaining screw (1) from the clamp.
  6. Separate the suction hose from the clamp.
  7. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls - 2.6L and 3.2L.

  8. Object Number: 756141  Size: SH
  9. Remove the retaining bolt (1) from the compressor.
  10. Remove the suction hose from the vehicle.

Installation Procedure

  1. Coat the new O-rings with refrigerant oil. Refer to O-Ring Replacement .
  2. Install the suction hose.

  3. Object Number: 817539  Size: SH
  4. Connect the suction hose to the evaporator.
  5. Important: Squeeze the clamp together until you hear it engage.

  6. Position the clamp (1) around the suction hose and engage.
  7. Gently tug on the suction hose to ensure that the clamp is engaged.

  8. Object Number: 840242  Size: SH
  9. Position the suction hose into the bracket.
  10. Notice: Refer to Fastener Notice in the Preface section.

  11. Install the screw (1) into the bracket.
  12. Tighten
    Tighten the screw to 1 N·m (9 lb in).


    Object Number: 756141  Size: SH
  13. Connect the suction hose to the compressor.
  14. Install the retaining bolt (1) to the compressor.
  15. Tighten
    Tighten the bolt to 9.8 N·m (87 lb in).

  16. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls - 2.6L and 3.2L.
  17. Evacuate and recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging .
  18. Leak test the fittings of the component using the J 39400-A .

Suction Hose Replacement RHD, LA3, LY9

Tools Required

    • J 39400-A Halogen Leak Detector
    • J 45689 A/C Quick Joint Tool

Removal Procedure

  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  2. Remove the battery. Refer to Battery Replacement in Engine Electrical.
  3. Important: The body of the tool should be parallel to the A/C line.


    Object Number: 817526  Size: SH
  4. Using the J 45689  (1), disconnect the suction hose from the evaporator by pressing the probe end into the two small openings in the plastic quick joint.

  5. Object Number: 840242  Size: SH
  6. Remove the suction hose retaining screw (1) from the clamp.
  7. Separate the suction hose from the clamp.
  8. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls - 2.6L and 3.2L.

  9. Object Number: 756141  Size: SH
  10. Remove the retaining bolt (1) from the compressor.
  11. Remove the suction hose from the vehicle.

Installation Procedure

  1. Coat the new O-rings with refrigerant oil. Refer to O-Ring Replacement .
  2. Install the suction hose.

  3. Object Number: 817539  Size: SH
  4. Connect the suction hose to the evaporator.
  5. Important: Squeeze the clamp together until you hear it engage.

  6. Position the clamp (1) around the suction hose and engage.
  7. Gently tug on the suction hose to ensure that the clamp is engaged.

  8. Object Number: 840242  Size: SH
  9. Position the suction hose into the bracket.
  10. Notice: Refer to Fastener Notice in the Preface section.

  11. Install the screw (1) into the bracket.
  12. Tighten
    Tighten the screw to 1 N·m (9 lb in).


    Object Number: 756141  Size: SH
  13. Connect the suction hose to the compressor.
  14. Install the retaining bolt (1) to the compressor.
  15. Tighten
    Tighten the bolt to 9.8 N·m (87 lb in).

  16. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls - 2.6L and 3.2L.
  17. Install the battery. Refer to Battery Replacement in Engine Electrical.
  18. Evacuate and recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging .
  19. Leak test the fittings of the component using the J 39400-A .