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

Working Hours
  • Mon 8:00AM - 5:00PM
    Tue 8:00AM - 5:00PM
  • Wed 8:00AM - 5:00PM
    Thu 8:00AM - 5:00PM
  • Fri 8:00AM - 5:00PM
    Sat Closed
  • Sun Closed

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 CarMart Automotive Service, 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.

What People Say About Us

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    Been taken my vehicles here for years, great work at a great price!

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    My experience with Car Mart was exceptional. Between Car Mart and the place where I lease my car, I was able to get my vehicle fixed with no problems or delays. They have an awesome team and do a great job.

  • reviewicon

    I thought I had a bad water pump, but it was only a bad radiator cap. Thank you for being an honest business!

  • reviewicon

    Great service. Quick, professional, and affordable. I am an "out of towner" and was completely at their mercy. They made me feel like we had been friends and neighbors forever. They picked up my disable vehicle, fixed it quickly, and the bill was surprisingly low (fair price).

Call us for service: 260-358-8446

ASE (Automotive Service Excellence)
IATN (International Automotive Technicians' Network)
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