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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 8:00AM - 6:00PM
    Thu 7:30AM - 6:30PM
  • Fri 7:30AM - 6:30PM
    Sat Closed
  • Sun Closed
    CLOSED JULY 5TH

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 Arizona Auto & Radiator 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

    AZ Auto and Radiator performed a thorough check of my vehicle and found some issues that I suspected were present, but were never diagnosed by another local auto business. The owner took the time to show me (on the vehicle) what he recommended and why. Professional, friendly service, and they didn't pressure me to have everything fixed immediately. Highly recommended!

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    As usual, Danny and staff did an AWESOME job! Danny and AnnMarie are wonderful people and are as honest as the day is long. AZ Auto and Radiator have been doing the maintenance on all of my vehicles since 1997 or 98, and I will continue to take my vehicle maintenance needs to them. They do excellent work, and will tell you the truth about your vechicle maintenance needs; without all the extra stuff that other auto shops will try to sell you. Take your vehicle to Danny and crew for you next vehicle maintenance needs--You Won't Be Sorry!

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    Danny and the crew at Arizona Auto are tops for reliable workmanship and customer service.

  • reviewicon

    Just had my oil change and a much-needed window repair before monsoon season hits. I have an older vehicle and I like that Danny and AnnMarie take a wholistic approach at caring for my car--they try to watch for possible issues and let me know what might be coming up. They are also mindful about determining the cause behind any needed repairs (if it is not something attributed to basic wear over time) so that we don't end up repairing the same issue over and over.

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    Not only can we trust that our truck is getting excellent, and current, service with Arizona Auto; each time we go, there is some thoughtful improvement to the waiting area. We couldn't be happier with them!

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    Seventeen years later we still depend on our extended family at Arizona Auto to fix our problems.

Call us for service: 520-459-2216

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