6.7L Diesel Engine
WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
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, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE .
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.
- Position the A/C suction line (3) into the engine compartment.
- Remove the tape or plugs from the opened refrigerant line fittings and expansion valve ports.
- 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.
- Connect the A/C liquid line (2) and A/C suction line to the A/C expansion valve (4).
- Install the nut (1) that secures the A/C liquid and suction lines to the A/C expansion valve. Tighten the nut to 23 N.m (17 ft. lbs.).
NOTE:
Illustration shown with lower radiator hose removed for clarity.
- Remove the tape or plugs from the opened suction line fitting and compressor port.
- Lubricate a new O-ring seal with clean refrigerant oil and install it and new gasket onto the suction 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.
- Connect the A/C suction line (3) to the A/C compressor (2).
- Install the nut (1) that secures the A/C suction line to the A/C compressor. Tighten the nut to 23 N.m (17 ft. lbs.).
- Install the turbocharger outlet hose.
- Install the air filter housing.
- Reconnect the negative battery cable.
- Evacuate the refrigerant system. Refer to PLUMBING, STANDARD PROCEDURE .
- Adjust the refrigerant oil level. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE .
- Charge the refrigerant system. Refer to PLUMBING, STANDARD PROCEDURE .