Removal and Replacement

Air Conditioning (A/C) Compressor













Removal and Installation

NOTICE: If installing a new Air Conditioning (A/C) compressor due to an internal failure of the old unit, the following procedures must be carried out to remove contamination from the air conditioning system. Failure to remove contamination from the A/C system, if present, will result in poor A/C performance and/or damage to the new A/C compressor and other components.
- If A/C flushing equipment is available, carry out flushing of the A/C system.
- If A/C flushing equipment is not available, carry out filtering of the A/C system after a new A/C compressor has been installed.
- Install a new Thermostatic Expansion Valve (TXV) and auxiliary TXV (if equipped).
- Install a new receiver/drier cartridge as directed by the A/C flushing or filtering procedure.

NOTE: A new A/C compressor may come equipped with an A/C clutch disc and hub, A/C compressor pulley and A/C clutch field coil already installed. If these components are not pre-installed, it will be necessary to transfer these parts from the old A/C compressor to the new compressor prior to installation of the A/C compressor if suitable for reuse.

NOTE: Installation of a new receiver/drier desiccant cartridge is not required when repairing the A/C system, except when there is physical evidence of contamination from a failed A/C compressor or damage to the receiver/drier desiccant cartridge. Damage to the receiver/drier desiccant cartridge includes physical damage to the receiver/drier desiccant cartridge or moisture contamination. Moisture contamination results only from a complete loss of refrigerant and equalization of the refrigerant system pressure with atmospheric pressure for a period longer than one hour. If even a slight amount of positive refrigerant pressure is present in the system before repairs are carried out, the receiver/drier desiccant cartridge should not be replaced.

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Vehicle Jacking and Lifting.

2. If flushing of the A/C system has not been carried out, recover the refrigerant.

3. Detach the wire harness retainer from the A/C compressor fitting stud and position the wire harness aside.

4. Remove the 2 A/C compressor fitting nuts and disconnect the fittings.
- Discard the O-ring seals and gasket seals.

- To install, tighten to 15 Nm (133 lb-in).

5. Remove the front skid-plate (if equipped).

6. Remove the drive belt from the A/C compressor pulley.

7. Disconnect the Crankshaft Position (CKP) sensor electrical connector.

8. Disconnect the clutch field coil electrical connector.

9. Remove the 3 A/C compressor bolts.
- To install, tighten to 25 Nm (18 lb-ft).

10. Remove the A/C compressor.

11. To install, reverse the removal procedure.
- If a new A/C compressor is to be installed, the clutch assembly may need to be transferred from the old unit to the new unit. For additional information, refer to Clutch and Clutch Field Coil Service and Repair.

- Install new gasket seals and O-ring seals.

- If filtering of the refrigerant system is not to be carried out, add the correct amount of clean PAG oil to the refrigerant system. For additional information, refer to the Refrigerant Oil Adding Procedure.

12. If filtering of the refrigerant system is not to be carried out, evacuate, leak test and charge the refrigerant system.