Replace Your Car's AC Thermal Expansion Valve or Orifice Tube
Wilkinson Auto Repair
Your car or truck's AC system is under extreme pressure and the thermal expansion valve or orifice tube monitors the amount of pressure and the temperature of your A/C system. It calculates the precise amount of refrigerant that can safely go into the evaporator. A failing expansion valve or orifice tube often causes a vehicle's air conditioner to blow hot air.
Replace or Repair
- Expansion Valves: Too much refrigerant causes your evaporator to get too cold whereas too little refrigerant would result in inadequate cooling. The expansion valve is a complex valve that regulates refrigerant flow. This process of metering the refrigerant adjusts the flow according to the temperature of the refrigerant in the evaporator coil. Talk to one of the pro mechanics at Wilkinson Auto Repair, as this part can be replaced on its own and does not require the entire replacement of the AC assembly.
- Orifice Tubes: Unlike the expansion valve, the orifice tube is a simple fixed device with no moving parts. It therefore cannot vary the flow of refrigerant into the evaporator, but rather causes a permanent restriction in the system. However, like the expansion valve the orifice tube regulates refrigerant flow through the system and filters debris which may come through in its screen. Often fixing a "bad orifice tube" requires replacing the entire evaporator assembly.
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I brought my the Chevy traverse in because I was having a lot of issues my ABS light would not allow me to turn it on and I had an engine lights on. Wilkins and help me figure out that my alignment was off and my sensor was bad and that's why my ABS light was not working and they also found out that I had numerous other codes going on with my car they were very friendly and very helpful they even told me that when my engine light came back on to bring it back and they will check the codes again to help me figure out what's going on with my car. They worked with me and give me a great price for everything they did for me. Thank you
Danielle C., 08/05/2021
I really want to thank the wonderful people at Wilkinson Auto repair for the great work they did on my car today. I was returning home to Alpena when my car broke down while driving north on I-75. My vehicle was towed to Wilkinson Auto Repair due to the proximity of where the vehicle broke down. I don't think I could have ended up in a better place! Despite it being a Friday afternoon, they quickly worked me in to their schedule. They diagnosed the problem as an alternator issue, and were able to a find replacement part quickly. They had me on the road back home within a couple of hours. Everyone working there was very kind and helpful. Thank you to all the wonderful people at Wilkinson Auto!
Mark Puls, 07/12/2021
Transmission leaking, called for service Thursday, and Friday was repaired. Their service is awesome, folks are very personable, price is great. Well recommended for any repair you need on autos.