A/C Suction Line - Installation

3.7L/4.7L ENGINES

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

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 systemRefrigerant Oil Level .

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: LHD model shown. RHD model similar.

1. Position the A/C suction line (6) into the engine compartment.
2. Remove the tape or plugs from the suction line fittings and the A/C compressor (2) and A/C expansion valve (8).
3. Lubricate a new O-ring and a dual-plane seal with clean refrigerant oil and install them onto the A/C suction line. Use only the specified 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. Install the A/C suction line onto the A/C compressor.
5. Install the nut (1) that secures the A/C suction line to the A/C compressor. Tighten the nut to 20 Nm (15 ft. lbs.).
6. Install the A/C suction line onto the A/C expansion valve.
7. Install the nut (7) that secures the A/C suction line to the A/C expansion valve. Tighten the nut to 20 Nm (15 ft. lbs.).
8. Install the air intake tube and the resonator.
9. Reconnect the negative battery cable.
10. Evacuate the refrigerant system Refrigerant System Evacuate.
11. Adjust the refrigerant oil level Refrigerant Oil Level.
12. Charge the refrigerant systemRefrigerant System Charge.