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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 4th Street Auto & Tire, 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
    , 06/17/2022

    Great customer service and great mechanics there ready to fix your problems.

  • reviewicon
    , 06/08/2022

    Came by this morning needed a battery replacement. Jake helped me tremendously by working within my budget with my battery and oil change. Jose was amazing he went out of his way to help me install the battery. Very nice people, very professional and informative as well. I am honestly very happy with their service these guys are seriously angles. I will definitely come back again.

  • reviewicon
    , 05/31/2022

    Went to get my tire patched. Good customer service, good price, good experience overall. Would recommend to a friend and would go again.

  • reviewicon
    , 05/31/2022

    These guys get it done, period. Super helpful and friendly. In and out, no fuss. Guy at counter is hot.

  • reviewicon
    , 05/30/2022

    Honest and priced well. Friendly service.

  • reviewicon
    , 05/27/2022

    This was a really difficult time for me. The crew at 4th Street Auto absolutely stepped up. Thank you. God bless.

Call us for service: 562-612-3142

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