Compressor HVAC: Service and Repair

AIR CONDITIONING (A/C) COMPRESSOR

REMOVAL

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 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: Installation of a new suction accumulator is not required when repairing the air conditioning system except when there is physical evidence of contamination from a failed A/C compressor or damage to the suction accumulator.

All vehicles
1. Position the vehicle on a hoist with the gear selector in NEUTRAL.
2. If flushing of the air conditioning system has not been carried out, recover the refrigerant.







3. Remove the bolts and the drive belt cover.







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







5. Disconnect the field coil electrical connector.

Vehicles with I4 engine







6. Remove the bolts and position the power steering line aside.
7. Remove the three compressor bolts and lower the A/C compressor.







8. Loosen the bolt and remove the A/C compressor.
- Discard the O-ring seals.

Vehicles with ZTEC or SPI engine







9. Loosen the bolt and detach the A/C compressor manifold and tube assembly.
- Discard the O-ring seals.

Vehicles with SPI engine







10. Remove the bolts and the A/C compressor.

Vehicles with ZTEC engine







11. Remove the bolts and the A/C compressor.

INSTALLATION

All vehicles
1. To install, reverse the removal procedure.
- Install new O-ring seals lubricated in clean PAG oil.
- If filtering of the refrigerant system is not to be carried out, lubricate the refrigerant system with the correct amount of clean PAG oil.

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