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VALVE, A/C Expansion: Installation: Installation

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: A/C Expansion Valve
GC0089603Courtesy of CHRYSLER LLC
  1. Remove the tape or plugs from the evaporator tube fittings and all of the expansion valve ports.
  2. Lubricate new O-ring seals with clean refrigerant oil and install them onto the evaporator tube 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.
  3. Install the A/C expansion valve (2) onto the evaporator tube tapping block (3).
  4. Install the two bolts (1) that secure the A/C expansion valve to the evaporator tube tapping block. Tighten the bolts to 11 N.m (97 in. lbs.).
    Fig 2: A/C Expansion Valve
    GC0089599Courtesy of CHRYSLER LLC
  5. Remove the tape or plugs from the liquid and suction line fittings.
  6. Lubricate new O-ring seals with clean refrigerant oil and install them onto the liquid and suction 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.
  7. Connect the A/C liquid line (2) and the A/C suction line (3) to the A/C expansion valve (4).
  8. Install the nut (1) that secures the A/C liquid and suction lines the A/C expansion valve. Tighten the nut to 23 N.m (17 ft. lbs.).
  9. Reconnect the negative battery cable.
  10. Evacuate the refrigerant system. Refer to Plumbing , Standard Procedure .
  11. Adjust the refrigerant oil level. Refer to OIL, Refrigerant , Standard Procedure .
  12. Charge the refrigerant system. Refer to Plumbing , Standard Procedure .
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