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2408 Pennsylvania Ave Weirton
WV 26062

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Weirton Tire & Auto Center

 (96 Reviews)

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 Weirton Tire & Auto 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.

More AC Repair Services:

Truck and Car AC Repair Services

Freon Recharging Services For Your Car Or Truck

AC Evaporator Services


Reviews

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Weirton Tire and Auto Center always gets my cars in quickly and they have provided quality tires, WV State Inspections and other services for me for many years.

, 06/23/2022

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From the first phone call, I knew I wanted to give them my business. Unfortunately, they were unable to provide what I need. I am blown away by their honesty and look forward to taking my vehicles there in the future!

, 06/09/2022

Got alignment at fair price with no problems!!

, 06/09/2022

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