Compressor HVAC: Service and Repair
REMOVALWARNING: 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 compressor clutch, clutch coil or engine.
1. Recover the refrigerant from the refrigerant system.
2. Disconnect and isolate the negative battery cable.
3. Remove the serpentine drive belt.
4. Disconnect the wire harness connector from the clutch coil connector of the A/C compressor (6).
5. Remove the bolt (7) that secure the A/C suction and discharge line assembly (8) to the A/C compressor.
6. Disconnect the refrigerant line assembly from the A/C compressor and remove and discard the seals.
7. Install plugs in, or tape over all of the opened refrigerant line fittings and the compressor ports.
8. Remove the bolts (4) that secure the A/C compressor (3) to the mounting bracket (2) located on the right side of the cylinder block (1).
9. Remove the A/C compressor from the engine compartment.
INSTALLATION
NOTE: Be certain to check the refrigerant oil level if the A/C compressor is being replaced. See Refrigerant Oil Level in this group for the procedures. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
1. Position the A/C compressor (3) into the engine compartment.
2. Install and hand tighten the bolts (4) that secure the A/C compressor to the mounting bracket (2).
3. Tighten the bolts that secure the A/C compressor to the mounting bracket to 24 N.m (17 ft.lbs.).
4. Remove the tape or plugs from the opened refrigerant line fittings and the compressor ports.
5. Lubricate new seals with clean refrigerant oil and install them onto the refrigerant line fittings. Use only the specified seals 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. Install the A/C suction and discharge line assembly (8) onto the A/C compressor (6).
7. Install the bolt (7) that secures the refrigerant line assembly to the A/C compressor. Tighten the bolt to 28 N.m (20 ft.lbs.).
8. Connect the wire harness connector to the clutch coil connector of the A/C compressor.
9. Install the serpentine drive belt.
10. Reconnect the negative battery cable.
11. Evacuate the refrigerant system.
12. Charge the refrigerant system.