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Valve, A/C Expansion: Installation

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, refer to the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. Refer to STANDARD PROCEDURE - REFRIGERANT OIL LEVEL .

NOTE:

Replacement of the seals is required anytime a refrigerant line or expansion valve is disconnected. Failure to replace the rubber and metal washer seals may result in a refrigerant system leak.

GC0126371Courtesy of CHRYSLER GROUP, LLC
  1. Remove the tape or plugs from the opened refrigerant line fittings and the evaporator and expansion valve ports.
  2. Lubricate new seals with clean refrigerant oil and install them onto the evaporator tube fittings. Use only the specified seals as they are made of a special material for the 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 A/C evaporator.
  4. Install the two bolts (1) that secure the A/C expansion valve to the A/C evaporator and tighten to the proper specification. Refer to TORQUE SPECIFICATIONS .
  5. Lubricate new washer seals with clean refrigerant oil and install them onto the refrigerant line fittings. Use only the specified seals as they are made of a special material for the system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
    CAUTION:

    Use care when installing the A/C lines to the A/C expansion valve. Carefully align the tube ends with the valve prior to tightening the A/C line retaining nut or damage to the sealing rings and tube ends may occur.

    GC0160289Courtesy of CHRYSLER GROUP, LLC
  6. Connect the A/C suction line and the A/C liquid line to the A/C expansion valve (2).
  7. Install the nut (1) that secures the A/C suction and liquid lines to the A/C expansion valve and tighten to the proper specification. Refer to TORQUE SPECIFICATIONS .
  8. Evacuate the refrigerant system. Refer to REFRIGERANT SYSTEM EVACUATE .
  9. Charge the refrigerant system. Refer to REFRIGERANT SYSTEM CHARGE .
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