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

Working Hours
  • Mon 8:00AM - 6:00PM
    Tue 8:00AM - 6:00PM
  • Wed 8:00AM - 6:00PM
    Thu 8:00AM - 6:00PM
  • Fri 8:00AM - 6:00PM
    Sat 8:00AM - 5:00PM
  • 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 4 L&A 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

Houston
Houston
  • reviewiconMy go-to shop
    Car & Truck Care, near Houston, TX
    , 03/04/2020

    I've allowed this shop to work on my cars for the past 6 years. My mother needed work done on her SUV, and they were timely and cost effective. My best friend also has had his vehicle serviced here since 2012. Highly recommend.

  • reviewiconMy go-to shop
    Car & Truck Care, near Houston, TX
    , 02/04/2019

    Honest, timely, and great prices.

Houston
  • reviewiconReasonable Prices and Quality Service
    Engine & Transmission, near Houston, TX
    , 01/16/2019

    Firstly, I called ahead and described to Michelle what another shop estimated the work needed on my 2008 Camry was going to take. She quoted me 50% less. An hour and a half after I dropped it off, my car was ready and the bill decreased another 25%. Two ignition coils later and the car drives smoother than ever. Thanks to Don Jose and Michelle for running a well oiled machine!!!

  • reviewiconReasonable Prices and Quality Service
    Engine & Transmission, near Houston, TX
    , 02/19/2020

    They get the job done!

Call us for service: 713-263-9082

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