Tools Required

J 39400-A Halogen Leak Detector

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
3. Remove the accessory drive belt from the compressor pulley. Refer to Drive Belt Replacement in Engine Mechanical - 3.4L.
4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.



5. Remove the compressor hose bolt from the compressor.
6. Remove the compressor hose from the compressor.
7. Disconnect the electrical connector from the compressor.
8. Remove and discard the O-rings from the compressor. Refer to O-Ring Replacement .
9. Install a shipping cap on the compressor hose to prevent moisture/contamination.



10. Install shipping cap to the compressor prior to removal to prevent spillage of oil and contamination.
11. Remove the compressor bolts from the compressor.
12. Remove the compressor from the vehicle.
13. If replacing the compressor, balance the oil. Refer to Compressor Oil Balancing .

1. Add the proper amount of polyalkylene glycol (PAG) oil to the compressor. Refer to Refrigerant System Capacities .
2. Install caps on compressor to prevent spillage during installation.



3. Install the compressor to the vehicle.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

4. Install the compressor bolts to the compressor.

Tighten
Tighten the bolts to 27 N·m (20 lb ft).

5. Remove the shipping cap from the compressor and the compressor hose.
6. Connect the electrical connector to the compressor.



7. Install new O-rings to the compressor. Refer to O-Ring Replacement .
8. Install compressor hose to the compressor.

Notice: The compressor hose must maintain a minimum clearance of 20 mm (0.8 in) from the exhaust gas recirculation (EGR) pipe. If this minimum clearance is not maintained, damage to the compressor hose may result.

9. Position the compressor hose to the compressor and tighten the bolt.

Tighten
Tighten the bolts to 16 N·m (12 lb ft).

10. Lower the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
11. Install the accessory drive belt to the compressor pulley. Refer to Drive Belt Replacement Engine Mechanical - 3.4L.
12. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
13. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
14. Test the affected A/C joints for leaks using J 39400-A .