GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Remove the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Recover the refrigerant from the system. Refer to Refrigerant Recovery and Recharging .
  3. Remove the coolant recovery or the surge tank. Refer to Coolant Recovery Reservoir Replacement or Surge Tank (Diesel) Replacement in Engine Cooling.
  4. Remove the air cleaner from the vehicle. Refer to Air Cleaner Assembly Replacement , Air Cleaner Assembly Replacement , Air Cleaner Assembly Replacement or Air Cleaner Assembly Replacement in Engine Controls.

  5. Object Number: 557648  Size: SH
  6. Remove the air conditioning line (2) connection from the accumulator (1).

  7. Object Number: 556745  Size: SH
  8. Remove the auxiliary hose (1) connection from the compressor (3), if equipped.

  9. Object Number: 300814  Size: SH
  10. Remove the air conditioning line from the condenser (4).
  11. Remove the bolt (2) from the hose assembly to the compressor (6).
  12. Cap or plug all open connections to prevent contamination.
  13. Remove the hose (3) from the vehicle.

Installation Procedure

  1. Remove the cap or plugs from the connections.
  2. Install the hose (3) to the vehicle compressor.

  3. Object Number: 300814  Size: SH
  4. Install the hose assembly retaining bolt (2) to the compressor.
  5. Tighten
    Tighten the hose retaining bolt to 45 N·m (33 lb ft).

  6. Install the air conditioning line to the condenser (4).
  7. Tighten
    Tighten the A/C line to the condenser to 28 N·m (21 lb ft).


    Object Number: 556745  Size: SH
  8. Install the auxiliary hose (1) connection at the compressor (3), if equipped.
  9. Tighten
    Tighten the auxiliary hose connection to the compressor to 48 N·m (35 lb ft).


    Object Number: 557648  Size: SH
  10. Install the air conditioning lines (2) to the accumulator (1).
  11. Tighten
    Tighten the A/C line to the accumulator to 48 N·m (35 lb ft).

  12. Evacuate and Recharge the refrigerant to the system. Refer to Refrigerant Recovery and Recharging .
  13. Install the air cleaner to the vehicle. Refer to Air Cleaner Assembly Replacement , Air Cleaner Assembly Replacement , Air Cleaner Assembly Replacement or Air Cleaner Assembly Replacement in Engine Controls.
  14. Install the coolant recovery or the surge tank. Refer to Coolant Recovery Reservoir Replacement or Surge Tank (Diesel) Replacement in Engine Cooling.
  15. Install the negative battery cable. Refer to Battery Disconnect Caution in Engine Electrical.