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Valve, A/C Expansion: Installation: Installation

WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. 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 table 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.

NOTE:

3.6L R-134a engine model shown. 2.8L/3.0L and 3.6L R-1234yf engine models similar.

Fig 1: Expansion Valve
GC0131712Courtesy of CHRYSLER GROUP, LLC
  1. Remove the tape or plugs from the opened refrigerant lines and 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-rings as they are made of a special material for the refrigerant 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 (1).
  4. Install the two bolts (3) that secure the A/C expansion valve to the evaporator tube tapping block. Tighten the bolts to the proper SPECIFICATIONS .
    Fig 2: A/C Lines, Expansion Valve & Nut
    GC0153994Courtesy of CHRYSLER GROUP, LLC
  5. Lubricate new O-ring seals with clean refrigerant oil and install them onto the refrigerant line fittings. Use only the specified O-rings as they are made of a special material for the refrigerant system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
  6. Connect the A/C liquid line (3) and A/C suction line (4) to the A/C expansion valve (1) and install the retaining nut (2). Tighten the nut to the proper SPECIFICATIONS .
    Fig 3: A/C Suction & Liquid Line Assembly
    GC0153968Courtesy of CHRYSLER GROUP, LLC
  7. On 3.0L/3.6L engine models, install the intake manifold. Refer to MANIFOLD, INTAKE, INSTALLATION .
  8. Engage the refrigerant line bracket (2) onto the stud located on the cowl panel (4) and install the retaining nut (3). Tighten the nut securely.
  9. Install the engine trim cover.
  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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