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 High-Tech Auto and Truck 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.
Contact Us Today!
Got questions? We've got answers! Drop us a line, give us a call, or even stop by. Our team is eager to help you with any auto repair needs you have. Let's get you back on the road safely and swiftly!
What Our Customers Are Saying
Taylor and all the technicians are perfect. We had a very positive experience with them
Chantilly, VA
Great team and awesome service. We worked through a headache with tires and they made it right even though it wasn’t their problem!!
Chantilly, VA
Taylor & the hard working crew at High Tech 4x4 are hands down the best garage i’ve used/found in the Northern Virginia area. I have brought them all types of cars with all types of issues, and some of them needing some extensive troubleshooting. These wonderful men and women have always come through with great trouble shooting at a very reasonable price. This is very hard and rare to find anywhere in this area. I’ve been an extremely loyal customer and client of theirs for over 10+ years. I won’t take my cars anywhere else. They always keep me updated, provide me with detailed estimates that are very reasonable. They stand behind their work, and they always keep all of five of my cars on the road. They will work on anything that I bring them without any complaint or hesitation. They just recently helped me on a JDM car that was only sold in Japan. The technicians were able to troubleshoot a couple electrical and mechanical issues easily and resolved these issues even without having any service repair manuals for these cars that were only sold in Japan. Very impressed with their quality of work, the way they approach the work and their pleasant attitudes. Every time i arrive with a problem Taylor & the entire crew at high tech find a solution. You guys make a car repair look easy and I appreciate you all. They are A++++ Thanks, your lifelong customer Mark
Chantilly, VA
Very attentive to my concerns. The waiting area has coffee, cold drinks, and snacks. They even adjusted my headlights and pached a hole in the roof of the cab, all at no extra charge.
Chantilly, VA
