Replace Your Car's AC Thermal Expansion Valve or Orifice Tube
A Plus Auto Service 1
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 A Plus Auto Service 1, 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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First time having service done at this place on my Mercedes Benz and it rides better than a 2020 Mercedes will go back for future work that need to be done on my car
Erik Nobles, 10/16/2020
Daniel provided great customer service. My 2009 vehicle seems to be running like a 2020. Thanks guys
Lisa Deal, 09/16/2020
Angel and his team are awesome! They are always courteous and professional. And better yet, they are honest, fairly priced, and work quickly! This is our first choice for where we bring our cars because we know we can trust them. They take the time to explain what's going on with the car without trying to sell products or repairs that you don't need. They definitely make the car repair process less painful. I highly recommend them!
Lindsey Krassel, 08/27/2020