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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 348 (Heating & Air Conditioning (Service Information) - 2500 Hd & 3500 Hd) >> Plumbing >> Line, A/C Suction >> Installation >> 6.7L Diesel Engine

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.

Fig 1: A/C Expansion Valve & Lines
GC0089599Courtesy of CHRYSLER GROUP, LLC
  1. Position the A/C suction line (3) into the engine compartment.
  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 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 N.m (17 ft. lbs.).
    Fig 2: Nuts, A/C Compressor, A/C Suction Line & A/C Discharge Line
    GC0137128Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    Illustration shown with lower radiator hose removed for clarity.

  6. Remove the tape or plugs from the opened suction line fitting and compressor port.
  7. 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.
  8. Connect the A/C suction line (3) to the A/C compressor (2).
  9. 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.).
  10. Install the turbocharger outlet hose.
  11. Install the air filter housing.
  12. Reconnect the negative battery cable.
  13. Evacuate the refrigerant system. Refer to PLUMBING, STANDARD PROCEDURE .
  14. Adjust the refrigerant oil level. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE .
  15. Charge the refrigerant system. Refer to PLUMBING, STANDARD PROCEDURE .