A/C Liquid Line - Installation

INSTALLATION

CAUTION: Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system [1][2]Capacity Specifications . 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, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system [1][2]Capacity Specifications .

NOTE: 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.





1. Position the A/C liquid line (2) into the engine compartment and engage the liquid line to the two retaining clips (1). Make sure the retaining clips are fully engaged.





2. Remove the tape or plugs from the opened refrigerant line fittings and expansion valve ports.
3. Lubricate new O-ring seals with clean refrigerant oil and install them onto the refrigerant line fittings. Use only the specified O-ring seals as they are 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.
4. Connect the A/C liquid line (2) and A/C suction line (3) to the A/C expansion valve (4).
5. Install the nut (1) that secures the A/C liquid and suction lines to the A/C expansion valve. Tighten the nut to 23 Nm (17 ft. lbs.).





6. Remove the tape or plugs from the opened liquid line fitting and condenser jumper line port.
7. Lubricate a new O-ring seal with clean refrigerant oil and install it and a new gasket onto the liquid line fitting. Use only the specified O-ring seal 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.
8. Connect the A/C liquid line (4) to the condenser jumper line tapping block (1).
9. Install the nut (2) that secures the A/C liquid line to the condenser jumper line tapping block. Tighten the nut to 23 Nm (17 ft. lbs.).
10. If equipped with the 6.7L diesel engine, install the battery tray and battery to the right side of the engine compartment.
11. If equipped with a gasoline engine, install the air filter housing mounting bracket and air filter housing to the right side of the engine compartment.
12. Reconnect the negative battery cable.
13. Evacuate the refrigerant system Refrigerant System Evacuate.
14. Adjust the refrigerant oil level [1][2]Capacity Specifications.
15. Charge the refrigerant system Refrigerant System Charge.