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 Appointment Only
  • Sun Closed
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740-335-6505 | 317 S Main St, Washington Court House, 43160

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

C&J Auto Service

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 C&J Auto 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.

More AC Repair Services:

Truck and Car AC Repair Services

Freon Recharging Services For Your Car Or Truck

AC Evaporator Services


What Our Customers Are Saying

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They were very helpful and explained things to me. I am very appreciative for the extra work they did to get me back up and running.

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THEY ARE THE BEST AND TREAT ME FINE TOO.... THE WHOLE FAMILY IS NICE AND ALWAYS DO A VERY GOOD JOB ON MY VEHICLE TOO... THEY TAKE ME HOME AND ALSO COME AND GET ME TOO, WHICH HELPS ME A LOT, WHEN THEY ARE FINISHED WITH MY VEHICLE... I THANK THEM VERY MUCH TOO.

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C&J Auto Service repaired my vehicle completely. Steve is very professional and answered all of my questions. I will be back soon for a major replacement.

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C&J Auto Service does good work. They do it on time and for the price that they quote.

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They do a really good job and they explained everything to me.

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Awesome and friendly service! A friend recommended me to C&J and I will do the same. Also very reasonably priced.

  • ACDelco
  • ASE (Automotive Service Excellence)
  • Jasper
  • ASE Master Technician
  • BBB (Better Business Bureau)
  • Car Care Aware
  • Call Us For Service: 740-335-6505