Compressor HVAC: Service and Repair
A/C COMPRESSORREMOVAL
WARNING: REFER TO THE APPLICABLE WARNINGS AND CAUTIONS FOR THIS SYSTEM BEFORE PERFORMING THE FOLLOWING OPERATION. FAILURE TO FOLLOW THE WARNINGS AND CAUTIONS COULD RESULT IN POSSIBLE PERSONAL INJURY OR DEATH.
NOTE:
- The A/C compressor may be removed and repositioned without disconnecting the refrigerant lines or discharging the refrigerant system. Discharging is not necessary if servicing the A/C clutch, clutch field coil or the engine.
- RHD model shown. LHD model similar.
1. Disconnect and isolate the negative battery cable.
2. Recover the refrigerant from the refrigerant system.
3. Remove the accessory drive belt.
4. Raise and support the vehicle.
5. Remove the front skid plate.
6. If necessary, disconnect the engine wire harness (2) from the A/C high pressure switch (5).
7. Remove the bolts (4) that secure the A/C suction line (3) and the A/C discharge line (1) to the A/C compressor (6) and disconnect the lines from the compressor.
8. Remove and discard the O-ring seals from the refrigerant line fittings and install plugs in, or tape over the opened fittings and the compressor ports.
9. Disconnect the engine wire harness from the A/C clutch field coil connector (1).
10. Support the A/C compressor (2) and remove the four bolts (3) that secure the compressor to the engine.
11. Remove the A/C compressor from the engine compartment.
INSTALLATION
NOTE:
- If the A/C compressor is being replaced, be certain to check the refrigerant oil level (refer to Refrigerant Oil). Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
- Replacement of the refrigerant line O-ring seals is required anytime a refrigerant line is opened. Failure to replace the rubber O-ring seals could result in a refrigerant system leak.
1. Position the A/C compressor (2) onto the engine.
2. Install the four bolts (3) that secure the A/C compressor to the engine. Tighten the bolts to 24.5 N.m (18 ft. lbs.).
3. Connect the engine wire harness to the A/C clutch field coil connector (1).
NOTE: RHD model shown. LHD model similar.
4. Remove the tape or plugs from the opened refrigerant line fittings and the compressor ports.
5. Lubricate new rubber O-ring seals with clean refrigerant oil and install them onto the refrigerant line fittings. Use only the specified O-rings as they are made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
6. Connect the A/C discharge line (1) and the A/C suction line (3) to the A/C compressor (6) and install the retaining bolts (4). Tighten the bolts to 12 N.m (106 in. lbs.).
7. If disconnected, connect the engine wire harness (2) to the A/C high pressure switch (5).
8. Install the front skid plate.
9. Lower the vehicle.
10. Install the accessory drive belt.
11. Reconnect the negative battery cable.
12. Evacuate the refrigerant system.
13. Charge the refrigerant system.