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6.7L Diesel Engine

WARNING: This page is about a different car, the 2012 RAM Pickup and 2012 RAM Cab & Chassis. 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. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE . 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. 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: 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.

  1. If removed, install the A/C pressure transducer onto the A/C discharge line (4). Refer to TRANSDUCER, A/C PRESSURE, INSTALLATION .
  2. Remove the tape or plugs from the discharge line fittings and the compressor and jumper line ports.
  3. Lubricate new O-ring seals with clean refrigerant oil and install them and new gaskets onto the discharge 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 discharge line to the A/C compressor (2).
  5. Install the nut (1) that secures the A/C discharge line to the A/C compressor. Tighten the nut to 23 N.m (17 ft. lbs.).
  6. Install the turbocharger outlet hose.
    Fig 2: A/C Discharge Line
    GC0137177Courtesy of CHRYSLER GROUP, LLC
  7. Connect the A/C discharge line (2) to the condenser jumper line tapping block (4) and install the nut (3). Tighten the nut to 23 N.m (17 ft. lbs.).
  8. Connect the wire harness connector to the A/C pressure transducer (1).
  9. Reconnect the negative battery cable.
  10. Install the air filter housing.
  11. Evacuate the refrigerant system. Refer to PLUMBING, STANDARD PROCEDURE .
  12. Adjust the refrigerant oil level. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE .
  13. Charge the refrigerant system. Refer to PLUMBING, STANDARD PROCEDURE .
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