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 AutoChoice Service 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.


Reviews

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Autochoice is the best and do they ever go the extra distance! Today they carefully extracted a 4’ rat snake from inside my dash. Then they extracted a huge mouse nest the snake was feeding from, then they replaced the washer hose that the mice had chewed, leaving my washer jets nonfunctioning. All with lots of good humor and a reasonable cost.

, 05/22/2024

I had my car in a while back for brake work and once again I was extremely pleased with Auto Choice. They are professional and honest (a rare combination) and I know that the work will be done correctly. I drive a Subaru and I completely trust my technician Jake to diagnose and expertly correct any issues that come up. I definitely will be back the next time I need anything car related. Thank you Jake and Auto Choice!

, 04/17/2024

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My son attends IU and his older car needed an urgent repair. The nature of the repair made it impossible for him to drive the car home and have our usual shop work on his car. Trust is a big issue when choosing a repair shop. The team at AutoChoice Service was professional and thorough in making their recommendations. They advised what repairs were urgent and what items could be delayed for the time being. Their quote was fair and detailed. The job was completed on time. I highly recommend AutoChoice.

, 03/31/2024

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