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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 9:00AM - 2:00PM
  • 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 Almaden Automotive, 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

    Very friendly staff. Got my old '91 truck in and out and fixed my problem (for now) with my A/C unit. It's an old truck and they gave me fair warning that the AC is on its way out. I appreciated their upfront, honest way of doing business. I can see why they have been there and in business for so long. They didn't try to force me into buying the brand new parts or make me feel pressured. Do good work and treat your customers with honesty and a friendly manner and you'll get return business. They do complete auto repair and would recommend them to friends and family.

  • reviewicon

    I've been taking my cars to Almaden Automotive for years, and it's about time I shared my opinion about their shop. Almaden Automotive is fantastic. The owner, John, and the gal who runs the place (all customer communications and so much more), Teresa, and the other mechanics are wonderful...I give Almaden Automotive my highest recommendation.

  • reviewicon

    I've been taking my vehicles to John for over 25 years. Excellent mechanic.

  • reviewicon

    Excellent people and great repair work. Thorough diagnostic analysis prior to beginning work.

  • reviewicon

    5 Stars!

  • reviewicon

    Good efficient service!

Call us for service: 408-281-7303

ASE (Automotive Service Excellence)
O'Reilly Certified Auto Repair
IATN (International Automotive Technicians' Network)
Jasper
  • Car Care Aware