Skip to main content
  • Facebook
  • Google Business Profile
  • Instagram
  • nextdoor
  • Yelp

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 Gary Wille's Auto & Tire Center, 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.


image-people-driving

OUR REVIEWS

 (152 Reviews)
image-quotes
reviewicon

Friendly, courteous, cost conscientious, and very easy to work with. We moved away for a couple years and are so very happy to be back with a business that is trustworthy. Thank you for the awesome results!

, 03/24/2024

join our team

We are currently on the lookout for the following:

  • Technicians
  • partners

    IDENTIFIX
    IATN (International Automotive Technicians' Network)
    AAA Approved Auto Repair
    ASE Master Technician
    Mitchell1
    BG Products
    NAPA  Auto Care
    Car Care Aware