Parts for your 2020 Ford Everest-Tx valve

2020 Ford Everest TX valve: what it does and when to service it

Based on technical references including the Ford Workshop Manual (Section 412-00 Climate Control for Everest UA/UA II), the Ford Global EPC parts catalogue, and supplier catalogues from DENSO/Nissens listing an A/C expansion (TX) valve for the Everest platform, the 2020 Ford Everest is fitted with a thermal expansion valve. Many Australian and New Zealand variants also offer rear air conditioning, those vehicles use a second TX valve for the rear evaporator.

The TX valve’s job is to meter refrigerant into the evaporator based on superheat. By matching flow to heat load, it keeps the evaporator cold without flooding liquid back to the compressor. That means quicker cool-down, steadier vent temps, and happier summer road trips with less compressor stress. On the Everest, it’s a block-style valve mounted at the evaporator connections, with internal sensing and equalisation.

It’s not a scheduled maintenance item, but it can become restricted (debris, moisture), stick open or closed, or leak at the O-rings. Owners typically notice weak or intermittent cooling, big swings in vent temperature, frosting on the evaporator pipes, or pressure readings that don’t make sense.

• Best practice during TX valve replacement: recover refrigerant, replace the valve and all related O-rings, renew the receiver-drier/desiccant bag, evacuate and recharge to the label-spec fill, and pressure/leak test. If the compressor has failed, flushing the lines and condenser suitability must be assessed.
• Use the correct PAG oil type and quantity stated in the Ford service data. Lightly oil O-rings and tighten fittings evenly to spec to avoid leaks or distortion.
• For models with rear A/C, confirm whether the fault is at the front or rear valve before parts ordering.

Because refrigerant handling in AU/NZ requires an ARCtick-licensed technician, TX valve diagnosis and replacement should be left to qualified air-con specialists. As part of broader A/C servicing on a 2020 Everest, it’s smart to keep the cabin filter fresh, ensure condenser fins are clean and straight, and run a performance test each year so a lazy TX valve or small leak is caught before peak summer.

Done right, a healthy TX valve helps the Everest’s air-con stay icy, efficient, and reliable for the long haul under the bonnet.

Popular questions

Does the 2020 Ford Everest use a TX valve or an orifice tube?
Technical documentation and parts catalogues for the UA/UA II Everest list a block-type thermal expansion valve at the evaporator. Many trims with rear air also have a second TX valve for the rear circuit. So, it’s a TXV system rather than a fixed orifice tube setup.

What are the signs the Everest’s TX valve is failing?
Common hints include slow or uneven cooling, vent temperatures that swing hot–cold, icing at the evaporator pipes, and abnormal high/low-side pressures. After a compressor failure, debris can clog the valve and cause similar symptoms.

Can the TX valve be serviced, or does it need replacement?
The valve isn’t serviceable, if it’s faulty or contaminated, replacement is the fix. An ARCtick-licensed technician should recover refrigerant, replace the valve and O-rings, renew the drier/desiccant, evacuate, and recharge to the under-bonnet spec.