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.
- If A/C flushing equipment is available, carry out flushing of the A/C system prior to installing a new A/C compressor.
- 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 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. With the vehicle in NEUTRAL, position it on a hoist.
2. If flushing of the A/C system has not been carried out, recover the refrigerant.
3. Remove the drive belt from the A/C compressor pulley.
4. Remove the RH front wheel and tire.
5. Remove the front portion of the RH fender splash shield.
6. Remove the 2 A/C compressor fitting nuts and disconnect the compressor suction fitting.
- Discard the O-ring seal and gasket seal.
- To install, tighten to 15 Nm (11 lb-ft).

7. Disconnect the field coil electrical connector and detach the wire harness from the A/C compressor stud.
8. Remove the compressor-to-condenser discharge line bracket nut and detach the bracket.
- To install, tighten to 9 Nm (80 lb-in).

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

10. Remove the lower rear A/C compressor nut.
- To install, tighten to 25 Nm (18 lb-ft).

11. Remove the lower rear A/C compressor stud.
- To install, tighten to 14 Nm (10 lb-ft).

12. Remove the upper A/C compressor nut.
- To install, tighten to 25 Nm (18 lb-ft).

13. Remove the upper A/C compressor stud.
- To install, tighten to 14 Nm (10 lb-ft).

14. NOTE: The A/C compressor can be removed through the opening at the RH wheel well.

Disconnect the A/C compressor discharge fitting and remove the A/C compressor.
- Discard the O-ring seal and gasket seal.

15. 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 and gasket seals.
- If filtering of the A/C system is not to be carried out, lubricate the refrigerant system with the correct amount of clean PAG oil.

16. If filtering of the A/C system is not to be carried out, evacuate, leak test and charge the refrigerant system.