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Best Parts Store, Fremont

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  • Allied Auto Stores - Fremont
    43815 S Grimmer Blvd
    Fremont, CA 94538

  • Allied Auto Stores - San Ramon
    3211 Fostoria Way, Unit E
    San Ramon, CA 94583

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

Working Hours
    SAN RAMON- MON THRU FRI: 7:30Am - 5:00PM SAT: 8:00AM - 5:00PM SUN: CLOSED
    FREMONT- MON THRU FRI: 7:30Am - 9:00PM SAT: 8:00AM - 6:00PM SUN: 8:00AM - 5:00PM

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 Allied Auto Stores, 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

    Great for hard to find parts.

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    All quality products they have for your cars.

  • reviewicon

    They're very good but have to double check them to make sure they understood your order. Will keep going there.

  • reviewicon

    Awesome, very helpful, they make sure you walk out with what you need

  • reviewicon

    Friendly staff helped me pick the correct parts for my car very quickly. Was in and out of there in a few mins.

  • reviewicon

    Great knowledge, helpful, good prices, worth the trip. I appreciate the level of professionalism. They are helpful with just the right tone, don't try to oversell me or treat me as brainless. I am given the appropriate prices and guidance, and I am very comfortable with their store, quality and recommendations. I drive past MANY chain options to get here, because they know what they are talking about, and they treat me right. It's worth driving to get to!!

Call us for service: 510-656-6233

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