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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 Don's Automotive 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

ASSOCIATIONS

  • ALL-DATA
  • ASE Master Technician
  • IDENTIFIX
  • Jasper
  • Car Care Aware

Testimonials

  • reviewicon
    I had body work done on my car after another person nailed my back panel with their car door. It had a nice size chip of paint taken out of it. Through State Farm, I had it repaired. When I went in for the estimate, they fully explained how they would have to repaint the whole side panel of my car because it was one piece that went all the way to the front of my car, requiring even the roof rack to be taken off. It took them only 3 days and my car came back beautifully repainted, washed, waxed and detailed inside and out. It looks brand new! I highly recommend that you take your car here for any work that you need done!

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    5 Stars!

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    Great people and quality work. Have been using them for over 10 years.

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    Excellent service. Polite, knowledgeable, and fair prices to boot! Thank you.