Best Auto Repair, Clovis

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

Working Hours
  • Mon 7:30AM - 6:00PM
    Tue 7:30AM - 6:00PM
  • Wed 7:30AM - 6:00PM
    Thu 7:30AM - 6:00PM
  • Fri Closed
    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 JM&H Automotive Inc., 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

Clovis
  • , 04/02/2024

    Very thankful for Steve and the guys at JM&H! My car's engine overheating warning came on all of a sudden when I was driving around on a Monday. I called JM&H and they were able to get me in last minute. Turns out my water pump took a dump and needed to be replaced. I had some other normal maintenance that was due, and they were able to do that while my car was in as well. All in all, they got me back on the road two days later with my car good as new. Some of the maintenance I was due for they said wasn't actually needed too after doing an inspection. Always thankful for honest mechanics that won't do something just because they can! Very happy with my service.

  • , 03/19/2024

    Definitely like coming to this shop I've been here a few times for both my vehicles for various maintenance issues already and they always do good work quickly and with a reasonable price

  • reviewiconCar & Truck Care, near Clovis, CA
    , 03/12/2024

    Great shop, fair prices, professional, honest staff. They're the only mechanics I trust and would highly recommend them for any automotive needs large or small.

  • reviewiconCar & Truck Care, near Clovis, CA
    , 01/06/2021

    Always good prices and good work and polite. Thanks

  • reviewicon
    , 10/20/2020

    Steve helped us, he was very honest, found the electrical issue with my vehicle right of way, fixed the problem and did not overcharge. His prices are fair and he does a great job. I would recommend Steve to all my family and friends because I know he is fair and honest and experienced at his mechanical work.

  • reviewicon
    , 07/18/2020

    Amazing service and high quality results. The only place in Fresno I found that was confident to work on my Saab.

Call us for service: 559-298-8922

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