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 H & H Auto Repair and Detailing 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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Shayla Coleman, 11/30/2022
Owner was very very helpful & accommodating. I am a young single mother who knows nothing much about cars. I was given the run around from every direction and was just desperate to get my car fixed. Unfortunately the issues were not something that could be covered by my warranty company and due to financial struggles I could not afford the cost to fix the car but the owner helped me out to be able to look at the car to be able to pay for the labor of taking it apart & even through the frustration he was still very helpful and kind to me. My car is not one that I'm interested in putting any more money into but I definitely appreciate the customer service and that speaks louder than anything else. In the future I will definitely go back when I'm financially able to afford but I'm grateful I ran across someone who was as helpful as H&H.