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 battery heat shield. Refer to Battery Heat Shield Replacement in Engine Electrical.
3. Remove the water pump. Refer to Water Pump Replacement in Engine Cooling.
4. Remove the compressor drive belt from the compressor clutch. Refer to Air Conditioning Compressor Belt Replacement in Engine Mechanical - 5.7L.
5. Remove the RH exhaust manifold heat shield.
6. Disconnect the compressor clutch electrical connector.



7. Remove the compressor hose assembly retaining bolt.

Important: Cap or tape off the A/C components immediately to prevent system contamination.

8. Disconnect the compressor hose assembly from the compressor.
9. Remove and discard the sealing washers.
10. Cap or tape off the compressor hose assembly.



11. Remove the lower compressor mounting bolts.



12. Remove the compressor mounting nut.
13. Fully loosen the compressor mounting stud.



14. Remove the upper compressor mounting bolt.
15. Remove the compressor and the mounting stud from the engine block.
16. Remove the compressor mounting stud from the compressor.
17. If replacing the compressor, refer to Compressor Oil Balancing .

1. Install the compressor mounting stud to the compressor.
2. Install the compressor into position on the compressor mounting bracket.
3. Install the compressor mounting stud to the engine block.
4. Install the upper compressor mounting bolt.
5. Install the lower compressor mounting bolts.

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.




6. Tighten the compressor mounting stud.

Tighten
Tighten the stud to 9 N·m (80 lb in).

7. Install the compressor mounting nut.

Important: Tighten the compressor mounting bolts in the following sequence:

1. Front upper
2. Front lower
3. Rear lower



8. Tighten the compressor mounting bolts.

Tighten
Tighten the bolts to 40 N·m (30 lb ft).

9. Tighten the compressor mounting nut

Tighten
Tighten the nut to 40 N·m (30 lb ft).

10. Remove the cap or tape from the compressor hose assembly.
11. Install new sealing washers onto the compressor hose assembly. Refer to Sealing Washer Replacement .



12. Install the compressor hose assembly to the compressor.
13. Install the compressor hose assembly to compressor retaining bolt.

Tighten
Tighten the bolt to 26 N·m (19 lb ft).




14. Connect the compressor clutch electrical connector.
15. Install the RH exhaust manifold heat shield.
16. Install the compressor drive belt. Refer to Air Conditioning Compressor Belt Replacement in Engine Mechanical - 5.7L.
17. Install the water pump. Refer to Water Pump Replacement in Engine Cooling.
18. Install the battery heat shield. Refer to Battery Heat Shield Replacement in Engine Electrical.
19. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
20. Leak test the fittings of the component using J 39400-A .