Air Conditioning Compressor Replacement

Compressor Replacement (LY7)

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
2. Remove the air cleaner assembly.
3. Remove the drive belt tensioner.
4. Reposition power steering reservoir aside. Refer to Remote Power Steering Fluid Reservoir Replacement (LH2) Remote Power Steering Fluid Reservoir Replacement (LY7).
5. Raise and support the vehicle. Refer to Vehicle Lifting.
6. Remove the LH wheel and tire.
7. Remove the engine splash shield.




8. Remove the suction line bolt (1) at the compressor.
9. Remove the discharge line bolt (2) at the compressor.
10. Disconnect the A/C lines from the compressor.
11. Disconnect the electrical connector from the compressor.
12. Remove the compressor mounting bolts.
13. Lower the vehicle.




14. Rotate the compressor and remove from the vehicle.
15. Replace the desiccant bag if the following conditions exist. Refer to Desiccant Bag Replacement.

* Color of PAG oil is brown or black
* Presence of foreign substances

16. If you are replacing the compressor, balance the compressor oil. Refer to Compressor Oil Balancing. Service and Repair
17. Remove and discard the O-ring seals from the compressor suction and discharge lines.

Installation Procedure

1. Install the compressor.
2. Raise and support the vehicle.




3. Install the compressor mounting bolts.

Notice: Refer to Fastener Notice.

4. Tighten the compressor mounting bolts.

Tighten the stud to 25 N.m (18 lb ft).

5. Connect the electrical connector.




6. Install new O-ring seals to the line fittings. Refer to O-Ring Replacement.
7. Connect the suction line to the compressor.
8. Install the suction line bolt (1).

Tighten the bolt to 9.8 N.m (87 lb in).

9. Connect the discharge line to the compressor
10. Install the discharge line bolt (2).

Tighten the bolt to 9.8 N.m (87 lb in).

11. Install the engine splash shield.
12. Install the LH wheel and tire.
13. Lower the vehicle.
14. Reposition and install the power steering reservoir. Refer to Remote Power Steering Fluid Reservoir Replacement (LH2) Remote Power Steering Fluid Reservoir Replacement (LY7).
15. Install the drive belt tensioner.
16. Install the air cleaner assembly.
17. Evacuate and recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging.
18. Using J 39400-A, leak test the fitting of the repaired or reinstalled component.