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5.7L Engine

WARNING: This page is about a different car, the 2011 RAM Pickup and 2011 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 OIL, Refrigerant , Standard Procedure  to determine how much oil should be added to the refrigerant system.

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: Refrigerant Lines
GC0089598Courtesy of CHRYSLER LLC
NOTE:

Illustration shown with refrigerant lines removed for clarity.

  1. If removed, install the A/C pressure transducer (4) onto the A/C discharge line (3). Refer to TRANSDUCER, A/C Pressure , Installation .
  2. Remove the plugs or tape from the opened discharge line fittings and 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. Position the A/C discharge line (5) into the engine compartment.
  5. Install the two retaining brackets (2 and 3) that secure the A/C discharge line to the A/C suction line (1) and to the upper front of the engine.
  6. Connect the wire harness connector to the A/C pressure transducer.
    Fig 2: Accessory Drive Belt
    GC0089585Courtesy of CHRYSLER LLC
  7. Connect the A/C discharge line (3) to the A/C compressor (4).
  8. Install the nut (2) that secures the A/C discharge line to the A/C compressor. Tighten the nut to 23 N.m (17 ft. lbs.).
    Fig 3: A/C Discharge & Liquid Lines
    GC0089589Courtesy of CHRYSLER LLC
  9. Connect the A/C discharge line to the condenser jumper line tapping block (1) and install the nut (2). Tighten the nut to 23 N.m (17 ft. lbs.).
  10. Reconnect the negative battery cable.
  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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