Compressor HVAC: Service and Repair

AIR CONDITIONING (A/C) COMPRESSOR







Removal and Installation

CAUTION: If installing a new air conditioning compressor due to an internal failure of the old unit, you must carry out the following procedures 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 air conditioning system prior to installing a new air conditioning compressor.
- If A/C flushing equipment is not available, carry out filtering of the air conditioning system after a new air conditioning compressor has been installed.
- Install a new evaporator core orifice as directed by the A/C flushing or filtering procedure.
- Install a new suction accumulator as directed by the A/C flushing or filtering procedure.

NOTE:
- If installing a new A/C compressor, the A/C clutch disc and hub, A/C compressor pulley and A/C clutch field coil must be inspected and transferred from the old unit to the new unit if suitable for reuse.
- Installation of a new suction accumulator is not required when repairing the air conditioning system except when there is physical evidence of system contamination from a failed A/C compressor or damage to the suction accumulator.

1. If flushing of the air conditioning system has not been carried out, recover the refrigerant.
2. Remove the air cleaner outlet pipe.
3. Remove the drive belt from the A/C compressor pulley.
4. Remove the 2 power steering reservoir bolts and position the reservoir aside.
5. Remove the 2 power steering reservoir bracket bolts and remove the bracket.
6. Disconnect the clutch field coil electrical connector.
7. Loosen the A/C compressor manifold bolt and detach the manifold and tube.
- Discard the O-ring seals.
- To install, tighten to 20 Nm (15 lb-ft).

8. Remove the retaining pins and position the inner fender well splash shield aside.







9. Remove the 2 A/C compressor nuts.
- To install, tighten to 25 Nm (18 lb-ft).

10. Remove the 2 A/C compressor studs.
- To install, tighten to 13 Nm (10 lb-ft).

11. Remove the 2 A/C compressor bolts and the A/C compressor.
- To install, tighten to 25 Nm (18 lb-ft).

12. To install, reverse the removal procedure.
- If a new A/C compressor is to be installed, the clutch assembly must be transferred from the old unit to the new unit.
- Install new O-ring seals.
- If filtering of the refrigerant system is not to be carried out, lubricate the refrigerant system with the correct amount of clean PAG oil.

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