Replace Your Car's AC Thermal Expansion Valve or Orifice Tube
Brake and Alignment Center, Inc
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 Brake and Alignment Center, Inc, 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:
I've brought my car in multiple times to this shop and have always received great service at a reasonable price. I trust that the work they do on my car is not only of good quality, but that it doesn't include things that I don't need or want. They are very honest, so if they say something needs to done, you know they're not just trying to squeeze more money out of you.
My go to shop for all my work. I send my teenage daughter there alone and know they will take care of her.
B&A Auto is the best automobile service in Charlotte. Good people, considerate, reasonable, not trying to sell me products or service I don't need. Extremely thorough and honest. I have been taking my cars to them since 2008. Was introduced to them by a friend and have recommended them for years. They have taken care of all my auto issues, even helped my handicapped brother sell his truck, and pushed back when some guy tried to treat my brother like an idiot because of his handicap. Yeah, 5 stars is not enough. 5+ from me for sure.