Replace Your Car's AC Thermal Expansion Valve or Orifice Tube

Bennett Automotive


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 Bennett Automotive, 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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Reviews

Quote reviewiconHonest Auto Repair
Electronic Services, near Thousand Oaks, CA

After taking my truck to several auto shops and one of them actually replacing a valve for the check engine light. The light kept coming on, took my truck to Bennett automotive, he cleaned up corrosion on an electrical connector and put a little electrical grease on the connector, and no more problems. I will go to Bennett automotive for all my auto needs from now on. A fair and honest team. Thanks Brent

, 03/22/2021

Quote reviewiconProfessional Auto Service
Thousand Oaks, CA

Brent always does a professional job. I have been going to this garage for almost 10 years. Never had a problem he could not fix. Even gave my son, a budding auto mechanic, suggestion as my son rebuilt his car. The online service is great for making appointments and seeing past and future maintenances.

Quote reviewiconAuto Repair Done Right
Thousand Oaks, CA

In the middle of a heatwave the last thing you need is your AC to be on the fritz. I was trying to be cheap and tried diy and soon realized this needs to be left to the pros. I found Bennett's Automotive and was impressed with the reviews so I called and Brent quoted me less than any shop. I went to his shop and was impressed. He's very professional and doesn't sugarcoat things. He's up front and to the point when it comes to prices. Unlike most mechanics these days that throw surprise costs at you at the time of checkout. Needless to say my AC is blowing nice cool air and I can now cruise with my windows up and be comfortable. I'll be back for future maintenance.

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