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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
    , 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!

  • reviewicon
    , 05/03/2021

    We were on a road trip when we found that someone had attempted to steal our catalytic converter. We called Major Muffler and they got us right in and 30 minutes later we’re back on the road. We were so grateful! We recommend Major Muffler very highly .

  • reviewicon
    , 05/03/2021

    I have an old suv. James and his crew have always been patient, professional, and have gone the extra mile. They provide top notch service and knowledge of all car systems. They do a lot more than mufflers. I highly recommend Major Muffler, and will continue to use them should the need arise. If you need auto repair please support this local business.

  • reviewicon
    , 04/12/2021

    Customer service was fast and vary friendly and the information wasn't forced it fel like a real conversation and everything I had done looks amazing and sounds amazing that major muffler!

  • reviewicon
    , 01/08/2016

    Awesome company! Their customer service and work is exceptional! Thank you Troy!

  • reviewicon
    , 02/16/2016

    Great customer service! I was in here a few months ago with my car almost breaking down on me, it was about 12pm. And they figured out the problem and took care of my car and I was back on the road within 4-5 hours. Highly recommended

Call us for service: 530-223-6640

ASE (Automotive Service Excellence)
NAPA
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