Tools Required

J 39400-A Halogen Leak Detector

1. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging .
2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Resonator Replacement in Engine Controls-4.3L.
3. Remove the drive belt.



4. Disconnect the A/C compressor clutch coil electrical connector (1).



5. Disconnect the A/C high pressure switch electrical connector (2).

Important: Do not disconnect the compressor hose assembly from the condenser or the accumulator.

6. Remove the compressor hose assembly from the compressor.
7. Remove the compressor sealing washers and discard.
8. Remove the nut and throttle control cable bracket from the throttle body.



9. Remove the compressor mounting bolts.
10. Remove the compressor from the vehicle.
11. If replacing the compressor, balance the refrigerant oil. Refer to Compressor Oil Balancing .

1. Install the new compressor to the vehicle.

Notice: Refer to Fastener Notice in the Preface section.

2. Install the compressor mounting bolts.

Tighten
Tighten the bolts to 50 N·m (37 lb ft).

3. Install the throttle control cable bracket and nut to the throttle body.

Tighten
Tighten the nut to 12 N·m (106 lb in).

4. Install new compressor hose assembly sealing washers. Refer to Sealing Washer Replacement .
5. Install the compressor hose assembly to the compressor.



6. Connect the A/C high pressure switch electrical connector (2).



7. Connect the A/C compressor clutch coil electrical connector (1).
8. Install the drive belt.
9. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Resonator Replacement in Engine Controls-4.3L.
10. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
11. Leak test the fittings of the components using J 39400-A .