Rear A/C Expansion Valve
Rear A/C Expansion Valve
Review the applicable warnings and cautions for this system before performing the following operation.
Removing
• Illustration shown with rear body cradle removed for clarity.
- Recover the refrigerant from the refrigerant system. Refer to => [ Refrigerant System, Recovery ] Refrigerant System, Recovery.
- Raise and support the vehicle.
- Loosen the nuts that secure the underbody refrigerant lines to the underbody refrigerant extension lines (3) located behind the right rear wheel housing.
- Disconnect the underbody refrigerant lines from underbody refrigerant extension lines and remove and discard the O-ring seals.
- Remove the nut (2) that secures the underbody refrigerant extension lines and sealing plate (4) to the rear A/C expansion valve (1).
- Disconnect the extension lines from the rear A/C expansion valve and remove and discard the O-ring seals.
- Remove the two bolts (4) that secure the rear A/C expansion valve (2) to the rear A/C evaporator (1), which extends through the rear floor panel (3).
- Remove the rear A/C expansion valve from the rear A/C evaporator and remove and discard the O-ring seals.
- Install plugs in, or tape over the opened underbody refrigerant line fittings and the rear evaporator and expansion valve ports.
Installing
Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system. Refer to => [ Refrigerant System, Recovery ] Refrigerant System, Recovery.
• 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 => [ Refrigerant Charge Capacity ] Capacity Specifications.
• Replacement of the refrigerant line O-ring seals and gaskets is required anytime a refrigerant line or expansion valve is disconnected. Failure to replace the rubber O-ring seals and metal gaskets may result in a refrigerant system leak.
- Remove the tape or plugs from the opened underbody refrigerant line fittings and the rear evaporator and expansion valve ports.
- Lubricate new rubber O-ring seals with clean refrigerant oil and install them onto the rear evaporator tube fittings. Use only the specified O-rings 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.
- Install the rear A/C expansion valve (2) onto the rear A/C evaporator (1), which extends through the rear floor panel (3) behind the right rear wheel housing.
- Install two bolts (4) that secure the rear A/C expansion valve to the A/C evaporator. Tighten the bolts to 11 Nm (97 in lbs).
• Illustration shown with rear body cradle removed for clarity.
- Lubricate new rubber O-ring seals with clean refrigerant oil and install them onto the underbody refrigerant line fittings. Use only the specified O-rings as they are made of a special material for the R-134a refrigerant system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
- Connect the underbody refrigerant extension lines (3) and the sealing plate (4) to the rear A/C expansion valve (1).
- Loosely install the nut (2) that secures the extension lines and sealing plate to the rear A/C expansion valve.
- Connect the underbody refrigerant lines to the underbody refrigerant extension lines and tighten the fitting nuts to 23 Nm (17 ft lbs).
- Tighten the nut that secures the extension lines and sealing plate to the rear A/C expansion valve to 11 Nm (95 in lbs).
- Lower the vehicle.
- Evacuate the refrigerant system. Refer to => [ Refrigerant System, Evacuate ] Refrigerant System, Evacuate.
- Adjust the refrigerant oil level. Refer to => [ Refrigerant System, Recovery ] Refrigerant System, Recovery.
- Charge the refrigerant system. Refer to => [ Refrigerant System, Charging ] Refrigerant System, Charging.