Installation

INSTALLATION

CAUTION: Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system. 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.

NOTE: When replacing multiple A/C system components, refer to the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system.

NOTE: Replacement of the refrigerant line O-ring seals and gaskets is required anytime a refrigerant line is opened. Failure to replace the rubber O-ring seals and metal gaskets could result in a refrigerant system leak.





NOTE: 4.7L engine shown. Other engines similar.

1. Remove the tape or plugs from the opened refrigerant line fittings and expansion valve and receiver/drier ports.

2. Position the A/C liquid line (1) into the engine compartment and install it to the front A/C expansion valve (2) and the receiver/drier (3).

3. Raise and support the vehicle.

4. Lubricate a new rubber O-ring seal with clean refrigerant oil and install it onto the underbody liquid line fitting. Use only the specified O-ring as it is made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.

5. Connect the liquid line extension tube (6) to the underbody liquid line (5) and install the nut (4). Tighten the nut to 20 Nm (15 ft. lbs.).

6. Lower the vehicle.

7. Reconnect the negative battery cable.

8. Evacuate the refrigerant system.

9. Adjust the refrigerant oil level.

10. Charge the refrigerant system.