3.6L Engine
If the A/C compressor is being replaced, be certain to adjust the refrigerant system oil level. Failure to properly adjust the refrigerant oil level will prevent the A/C system from operating as designed and can cause serious A/C compressor damage.
The A/C receiver/drier must be replaced if an internal failure of the A/C compressor has occurred. Failure to replace the A/C receiver/drier can cause serious damage to the replacement A/C compressor.
When replacing multiple A/C system components, see the Refrigerant Oil Capacities chart to determine how much oil should be removed from the new A/C compressor. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE .
Replacement of the refrigerant line O-ring seals and gaskets is required anytime a refrigerant line is disconnected. Failure to replace the rubber O-ring seals and metal gaskets could result in a refrigerant system leak.
- If the A/C compressor (2) is being replaced, the refrigerant oil in the old compressor must be first drained and measured. Then the oil in the new A/C compressor must be drained. Finally, the new compressor must be refilled with the same amount of new refrigerant oil that was drained out of the old compressor. When replacing multiple A/C system components, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE . Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
- Position the A/C compressor to the engine and install the two studs (3 and 7). Tighten the studs to the proper torque specifications. Refer to TORQUE SPECIFICATIONS .
- Loosely install the two bolts (1).
- Reposition the heater tube and bracket (4) and loosely install the two nuts (5 and 6).
- Tighten the bolts and nuts to 28 N.m (21 ft. lbs.) using the following sequence:
- Bolt at front compressor.
- Nut at front compressor.
- Bolt at rear compressor.
- Nut at rear compressor.
- Install the front belly pan. Refer to BELLY PAN, INSTALLATION
.NOTE:
Typical A/C compressor and refrigerant lines show.
- Remove the tape or plugs from the opened fittings on the A/C suction line (3) and the A/C discharge line (4) and the compressor ports.
- Lubricate new dual plane seals with clean refrigerant oil and install them onto the suction and the discharge line fittings. Use only the specified seals as they are made of a special material for the specific refrigerant in the system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
- Connect the suction and discharge lines onto the A/C compressor (5).
- Install the nuts (2) that secure the suction and discharge lines to the A/C compressor and tighten to the proper torque specifications. Refer to TORQUE SPECIFICATIONS .
- Connect the engine wire harness to the A/C clutch connector (1).
- Install the accessory drive belt. Refer to BELT, SERPENTINE, INSTALLATION .
- Replace the A/C receiver/drier if the A/C compressor is being replaced due to an internal failure. Refer to DRIER, A/C RECEIVER, REMOVAL .
- Install the air cleaner housing. Refer to BODY, AIR CLEANER, INSTALLATION .
- Connect the negative battery cable. If equipped with an Intelligent Battery Sensor (IBS), connect the IBS connector.
- Evacuate and charge the refrigerant system. Refer to PLUMBING, STANDARD PROCEDURE .

