Working Hours
  • Mon 8:00AM - 5:30PM
    Tue 8:00AM - 5:30PM
  • Wed 8:00AM - 5:30PM
    Thu 8:00AM - 5:30PM
  • Fri 8:00AM - 5:00PM
    Sat Closed
  • Sun Closed
    Closed 12-1 for Lunch
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585-586-3180 | 929 W Linden Ave, East Rochester, 14445

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

Van Thof's Auto & Radiator Inc.

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 Van Thof's Auto & Radiator Inc., 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 Our Customers Are Saying

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Jim is fair and honest. The work is superior. True hours are: 8am to 12noon and 1pm to 5:30 pm. Don't stop by between noon and 1pm, they close their doors for lunch.

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Jim and his staff have been taking care of our cars for years, and we always feel we are very well taken care, charged appropriately, and the work is well done. It is so nice to have somone service your vechicle who is honest, respectful and you can trust. Don't bring your car anywhere else!

  • ASE Certified (Automotive Service Excellence)
  • AutoValue Certified Service Center
  • Confidence Plus North American Warranty
  • Official State of New York Motor Vehicle Inspection Station
  • Registered State of New York Motor Vehicle Repair Shop
  • Call Us For Service: 585-586-3180