Air Conditioning Compressor Replacement

Air Conditioning Compressor Replacement (LY2, LY5, LH6, L76, L92, LC9 and LMG)

Special Tools

J 39400-A Halogen Leak Detector

Removal Procedure




1. Recover the refrigerant.
2. Install a ratchet into the air conditioning (A/C) belt tensioner adapter opening.
3. Remove the air cleaner resonator outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement Service and Repair.
4. Rotate the A/C belt tensioner clockwise in order to relieve the tension on the belt. If LC9 or LMG engine, Refer to Air Conditioning Compressor Belt Replacement (V8) Air Conditioning Compressor Belt Replacement.
5. Remove the A/C belt from the A/C compressor.
6. Slowly release the tension on the A/C belt tensioner.
7. Remove the discharge hose bolt from the A/C compressor.
8. Remove the discharge hose from the A/C compressor.
9. Remove the suction hose bolt from the A/C compressor.
10. Remove the suction hose from the A/C compressor.
11. Discard the sealing washers. Cap all of the openings.
12. Disconnect the electrical connections.




13. Remove the A/C compressor mounting bolts. The lower right bolt (3) will stay with the compressor due to a lack of clearance.
14. Remove the A/C compressor (2) from the bracket (1).
15. If replacing the A/C compressor. Refer to Air Conditioning Compressor Oil Balancing (Non-HP2) ProceduresAir Conditioning Compressor Oil Balancing (HP2) Procedures.

Installation Procedure




1. Install the A/C compressor (2) to the bracket (1) through the fender well. Insert the mounting bolt (3) into the lower right mounting boss before installing the A/C compressor.
2. Install the A/C compressor to the bracket. Insert the mounting bolt into the lower right mount before installing the A/C compressor.

Caution: Refer to Fastener Caution Fastener Caution.

3. Install the A/C compressor mounting bolts and tighten to 50 Nm (37 lb ft).
4. Connect the electrical connector to the A/C compressor.
5. Install the A/C discharge hose to the compressor using new sealing washers. Refer to Air Conditioning System Seal Replacement Air Conditioning System Seal Replacement.
6. Install the A/C discharge hose bolt to the A/C compressor and tighten to 16 Nm (12 lb ft).
7. Install the A/C suction hose to the compressor using new sealing washers. Refer to Air Conditioning System Seal Replacement Air Conditioning System Seal Replacement.
8. Install the A/C suction hose bolt to the A/C compressor and tighten to 16 Nm (12 lb ft).
9. Install the A/C drive belt. Refer to Air Conditioning Compressor Belt Replacement (V8) Air Conditioning Compressor Belt Replacement. If LC9 or LMG engine, Refer to Air Conditioning Compressor Belt Replacement (V8) Air Conditioning Compressor Belt Replacement.
10. Evacuate and recharge.
11. Install the air cleaner resonator outlet duct
12. Leak test the fittings of the component using the J 39400-A .