Compressor HVAC: Service and Repair

REMOVAL

NOTE: The compressor may be removed and repositioned without disconnecting the refrigerant lines or discharging the refrigerant system. Discharging is not necessary if servicing the compressor clutch or clutch coil, the engine, the cylinder head, or the generator.

1. Recover the refrigerant from the refrigerant system.
2. Disconnect and isolate the battery negative cable.
3. Unplug the compressor clutch coil wire harness connector.

Fig.1 Compressor Lines - 4 Cylinder Engine:

Fig.2 Compressor Lines:

4. Remove the screws that secure the suction line and discharge line block fittings to the manifold on the compressor and. Install plugs in, or tape over all of the opened refrigerant fittings.

Fig.3 Compressor - 4 Cylinder Engine:

Fig.4 Compressor Lines - 6 Cylinder Engine:

6. Remove the screws that secure the compressor and.
7. Remove the compressor.

INSTALLATION
The compressor may be removed and repositioned without disconnecting the refrigerant lines or discharging the refrigerant system. Discharging is not necessary if servicing the compressor clutch or clutch coil, the engine, the cylinder head, or the generator.

NOTE: If a replacement compressor is being installed, be certain to check the refrigerant oil level. See Refrigerant Oil Level for the procedures. Use only refrigerant oil of the type recommended for the compressor in the vehicle.

1. Install the compressor.
Tighten the mounting bolts to 28 Nm (21 ft. lbs.).
2. Remove the tape or plugs from all of the opened refrigerant line fittings. Install the suction line and discharge line block fittings to the manifold on the compressor. Tighten the mounting screws to 25.4 Nm (20 ft. lbs.).
3. Install the serpentine drive belt.
4. Plug in the compressor clutch coil wire harness connector.
5. Connect the battery negative cable.
6. Evacuate the refrigerant system.
7. Charge the refrigerant system.