Compressor HVAC: Service and Repair

Air Conditioning (A/C) Compressor - 3.0L (4V)






Material

Removal and Installation

CAUTION: If installing anew 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 the flushing of the air conditioning system prior to installing a new air conditioning compressor. For additional information, refer to Heating and Air Conditioning/Service and Repair. Service and Repair
- 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. For additional information, refer to Heating and Air Conditioning/Service and Repair. Service and Repair
- Install a new evaporator core orifice (19D990) as directed by the A/C flushing or filtering procedure.
- Install a new suction accumulator (19C836) 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 (19D786) A/C compressor pulley (19D784) and A/C clutch field coil (19D798) must be inspected and transferred from the old unit to the new unit if suitable for reuse.

NOTE: 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. Remove the compressor manifold and tube assembly (19D734). For additional information refer to Compressor Fitting. Compressor Fitting HVAC

2. Remove the accessory drive belt (8620) from the A/C compressor pulley.







3. NOTE: Move the A/C compressor toward the rear of the engine and remove the A/C compressor through the battery junction box mounting location.

Remove the A/C compressor.
1. Remove the four bolts.
2. Remove the A/C compressor.

4. 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. For additional information refer to Compressor Clutch. Compressor Clutch
- If filtering of the refrigerant system is not to be performed lubricate the refrigerant system with the correct amount of clean PAG oil or equivalent. For additional information, refer to Heating and Air Conditioning/Service and Repair. Service and Repair
- Install new 0-ring seals lubricated in clean PAG oil or equivalent

5. If filtering of the refrigerant system is not to be performed evacuate charge and leak test the refrigerant system. For additional information, refer to Heating and Air Conditioning/Service and Repair. Service and Repair