Replace Your Car's AC Thermal Expansion Valve or Orifice Tube
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 Evans Automotive & Tire Center, 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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What Our Customers Are Saying
I have come to fully trust my truck service and repairs with these top notch professionals. As a 70 y/o guy I’ve used many dealership and repair shops in my life but have used none that compare. I’ve had in-depth repairs and routine service done by Evans and have been extremely satisfied each time. I always recommend them to my neighbors and friends.
Saint Augustine, FL
I took my 2016 JK Wrangler to Evans Automotive and Tire Repair to look at a very small coolant leak in my radiator. They confirmed that the leak was a major repair waiting to happen which I already suspected. I decided to leave my vehicle with them over the Labor Day holiday so they could receive the parts and repair my Jeep. The car was promised on the Thursday after the holiday. I received a call that same afternoon that my Jeep was repaired and ready to pickup (6 days early). The price was more than fair for the services they provided and the unexpected call that same day that my repair was complete. I have used Evans for prior vehicles and have always felt they are focused on doing excellent work for their customers. I have never been disappointed. I will continue to be a customer.
Saint Augustine, FL
Locally owned and awesome!!!!
Saint Augustine, FL
Explained what I wanted done, they listened and did everything perfectly. Very pleased. Guys working out front taking care of customers are the greatest.
Saint Augustine, FL
