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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 Sheets 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

ASSOCIATIONS

  • ASE (Automotive Service Excellence)
  • IDENTIFIX
  • BBB (Better Business Bureau)
  • Car Care Aware

Testimonials

  • reviewicon
    For the past 34 years, Sheets Automotive has performed the routine maintenance and repairs on my cars. I have always received top notch service in a very professional manner and at a fair price. If you need an honest and reliable auto service shop, then I would highly recommend Sheets Automotive.

  • reviewicon
    I have had Mr. Sheets work on my vehicles a few times. Recently I needed the timing belt replaced on my Honda. I also had a problem with my brakes that I just could not figure out, so I took it to Mr. Sheets. He solved the problem with the brakes, replaced the timing belt and associated parts all at a very reasonable fee. I am very happy with his work and honesty. I would not be afraid to deal with him for any vehicle need. Mr. Sheets gets an A++ from me.

  • reviewicon
    Fair prices. Nice technicians.

  • reviewicon
    Thank you for your kindness and help with my Jeep! 400K Miles and still running thanks to you!

  • reviewicon
    ...Always great service. I have told many of my friends and family that this is the ONLY place to go to get your car fixed!