Air Conditioning Compressor Replacement L47

Tools Required

J 39400-A Halogen Leak Detector

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
2. Remove the drive belt. Refer to Drive Belt Replacement in Engine Mechanical-4.0L.
3. Raise and support vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
4. Remove the right front tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
5. Remove the front air deflector. Refer to Front Air Deflector Replacement in Body Front End.
6. Remove the washer bottle. Refer to Windshield Washer Solvent Container Replacement in Wipers/Washer Systems.
7. Disconnect the brake line retaining clips from frame in order to allow the brake lines to move during removal of the A/C compressor.

Important: Seal the A/C compressor suction and discharge ports after the hoses are removed in order to keep the A/C compressor oil from draining out of the compressor during removal.

All A/C lines, hoses and components should be sealed after removal in order to avoid excessive moisture contamination to the A/C system during servicing.



8. Disconnect the suction hose fitting from the compressor.



9. Disconnect the discharge hose fitting from the compressor.



10. Disconnect the compressor electrical connector.



11. Remove the rear compressor mounting fasteners (3, 4).
12. Remove the lower generator mounting bolt.
13. Remove the front compressor mounting fasteners (1, 2).



14. Remove the A/C compressor mounting stud (1).



15. Rotate the compressor, in order to allow the A/C compressor to exit through the wheelhouse opening.
16. Remove the compressor from the vehicle.

Important: When replacing the compressor it is necessary to drain and measure the old compressor oil (be sure to rotate the shaft to ensure a complete draining). Drain the oil from the new compressor and add the amount taken from the old compressor. Refer to Refrigerant System Capacities .




1. Install the A/C compressor through the wheelhouse opening.



2. Position the A/C compressor (2) on the mounting surface.

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.

3. Install the A/C compressor mounting stud (1) through the appropriate compressor mounting ear.

Tighten
Tighten the A/C compressor mounting stud to 25 N·m (18 lb ft).




4. Install the A/C compressor mounting fasteners (1, 2, 3, 4) and hand tighten.

Tighten

•	Tighten the A/C compressor mounting nut (1) to 50 N·m (37 lb ft).

•	Tighten the A/C compressor mounting bolts (2, 3) to 50 N·m (37 lb ft).

•	Tighten the A/C compressor mounting bolt (4) to 25 N·m (18 lb ft).

5. Install the generator mounting bolt.

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




6. Connect the compressor electrical connector.

Important: Inspect the seal washers for damage before reinstalling the A/C lines and hoses.

If any damage is noted during inspection, the suspect seal must be replaced.
Flat washer type seals do not require lubrication.



7. Connect the discharge hose fitting to compressor.

Tighten
Tighten the discharge hose nut to 20 N·m (15 lb ft).




8. Connect the suction hose nut to the compressor

Tighten
Tighten the suction hose fitting to the compressor to 20 N·m (15 lb ft).

9. Connect the brake line retaining clips onto the frame.
10. Install the belt. Refer to Drive Belt Replacement in Engine Mechanical-4.0L.
11. Install the washer bottle. Refer to Windshield Washer Solvent Container Replacement in Wipers/Washer Systems.
12. Install the front air deflector. Refer to Front Air Deflector Replacement in Body Front End.
13. Reinstall the right front tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
14. Lower the vehicle.
15. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
16. Leak test the fittings of the component using the J 39400-A .

Air Conditioning Compressor Replacement LX5

Tools Required

J 39400-A Halogen Leak Detector

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
2. Remove the drive belt. Refer to Drive Belt Replacement in Engine Mechanical-3.5L.
3. Raise and support vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
4. Remove the right front tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
5. Remove the front air deflector. Refer to Front Air Deflector Replacement in Body Front End.
6. Remove the right wheelhouse extension. Refer to Wheelhouse Extension Replacement in Body Front End.
7. Support the front of the cradle with a floor jack.
8. Remove the right front cradle bolt and lower the cradle.
9. Remove the idler pulley and bolt. Refer to Drive Belt Idler Pulley Replacement in Engine Mechanical-3.5L.

Important: Seal the A/C compressor suction and discharge ports after the hoses are removed in order to keep the A/C compressor oil from draining out of the compressor during removal.

All A/C lines, hoses and components should be sealed after removal in order to avoid excessive moisture contamination to the A/C system during servicing.



10. Disconnect the suction hose fitting from the compressor.



11. Disconnect the discharge hose fitting from the compressor.
12. Remove the upper generator mounting bolts and position the generator out of the way in order to access the compressor mounting bolts.



13. Disconnect the compressor electrical connector.



14. Remove the upper compressor mounting bolts (1).
15. Position the generator and install the idler pulley bolt to hold the generator in place.
16. Loosen the rear nut (2) and remove the front nut (3).
17. Remove the compressor from the engine block.
18. Rotate the compressor, in order to allow the A/C compressor to exit through the wheelhouse opening.
19. Remove the compressor from the vehicle.

Important: When replacing the compressor it is necessary to drain and measure the old compressor oil (be sure to rotate the shaft to ensure a complete draining). Drain the oil from the new compressor and add the amount taken from the old compressor. Refer to Refrigerant System Capacities .




1. Install the A/C compressor through the wheelhouse opening and position on the front (4) and rear (5) studs.
2. Remove the generator idler pulley bolt and position generator out of the way.

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.

3. Install and hand tighten the bolts (1) and nuts (2, 3).

Tighten

•	Tighten the A/C compressor front nut (3) to 50 N·m (37 lb ft).

•	Tighten the A/C compressor mounting bolts (1) to 50 N·m (37 lb ft).

•	Tighten the A/C compressor rear nut (2) to 25 N·m (18 lb ft).




4. Connect the compressor electrical connector.
5. Install the generator mounting bolts.

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

Important: Inspect the seal washers for damage before reinstalling the A/C lines and hoses.

If any damage is noted during inspection, the suspect seal must be replaced.
Flat washer type seals do not require lubrication.



6. Connect the discharge hose fitting to compressor.

Tighten
Tighten the discharge hose nut to 20 N·m (15 lb ft).




7. Connect the suction hose fitting to the compressor

Tighten
Tighten the suction hose nut to the compressor to 20 N·m (15 lb ft).

8. Install the idler pulley and bolt. Refer to Drive Belt Idler Pulley Replacement in Engine Mechanical-3.5L.
9. Raise the right front cradle and install the bolt.

Tighten
Tighten the bolt to 191 N·m (141 lb ft).

10. Install the drive belt. Refer to Drive Belt Replacement in Engine Mechanical-3.5L.
11. Install the right side AIR pump. Refer to Secondary Air Injection Pump Replacement in Engine Controls-3.5L.
12. Install the wheelhouse extension. Refer to Wheelhouse Extension Replacement in Body Front End.
13. Install the front air deflector. Refer to Front Air Deflector Replacement in Body Front End.
14. Reinstall the right front tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
15. Lower the vehicle.
16. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
17. Leak test the fittings of the component using the J 39400-A .