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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 Major Muffler & Auto Repair, 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 People Say About Us

  • reviewicon
    , 11/12/2021

    Great people, very good at their job & back up their work!

  • reviewicon
    , 10/28/2021

    They are a great place to go.

  • reviewicon
    , 10/21/2021

    This guy is honest and a stand up business man. He could have done a $450 job and never told me my truck had a manufactures defect. I have come here in the past and had the same experience. Thank you for being honest. Scott

  • reviewicon
    , 10/05/2021

    They did an amazing job on my exhaust system. really friendly an very honest. I highly recommend.

  • reviewicon
    , 10/01/2021

    Yesterday, I called this auto shop, and Christine was very helpful in providing some requested information. As a result, I decided to come in to have my car fixed here. I really appreciated James' and her transparency and helpfulness. They met me where I am. I could tell they are honest people seeking to perform an honest day's work. They exemplify the spirit of the American entrepreneur/small business owner, and I walked away as feeling like a human being. I would definitely recommend supporting this business.

  • reviewicon
    , 07/01/2021

    We were passing through and the muffler started sounding really bad. It was 20 mins to closing before a four day holiday weekend. We were in and out and had our broken muffler fixed by the owner free of charge. Thank you!

Call us for service: 530-223-6640

ASE (Automotive Service Excellence)
NAPA
BG Products
magnaflow
flowmaster
ascca
  • Car Care Aware