615-563-5171 | 3030 Gassaway Road, Woodbury, 37190
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 Boyd's Garage, 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.
More AC Repair Services:
Gift Certificates Available!view coupon
Contact us for details.
Laurie Tyrie, 10/04/2023
I took my BMW to Boyd's last week for an oil change and checkup since it's pushing 16 years old and a lot of miles. Being new to the area, I took the advice of another satisfied customer and gave Mr. Boyd a call. Wow, Mr. and Mrs. Boyd are such wonderful people. Not only did I leave there feeling confident that my car was taken care of, but had a delightful conversation with the Boyd's. I called my son, who is also new to the area, and told him we have found ourselves a great, trustworthy mechanic. And the price for the work and time was better value than I've ever found anywhere else. My son needs an alignment so will be giving you a call soon! Thank you so much!