Replace Your Car's AC Thermal Expansion Valve or Orifice Tube
AA Affordable Auto Repair, Towing, and Locksmith
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 AA Affordable Auto Repair, Towing, and Locksmith, 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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Very honest and hard working group of people. The owner is very much involved. I went in due to overheating of my car and they performed the check quickly and were honest and did not overcharge.
Billy Wall, 09/15/2021
Service was quick and they even took the time to walk me through the repaired parts. The price was affordable. Keep it up guys!
Lynda Allen, 09/14/2021
Exceptional work. Friendliest staff. Never been more confident each time I drive away. A cut above the rest.
Hattie Conner, 09/13/2021