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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 SC Auto Air, 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.

ASSOCIATIONS

  • ASE (Automotive Service Excellence)
  • IDENTIFIX
  • Jasper
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Testimonials

  • reviewiconComplete. Now cool inside on a hot day!
    AC Repair, near Santa Clarita, CA
    Didn't stop till the problem was solved. Fast , clean ,& friendly.

  • My vehicle is working well.

  • Everything was made clear to me and at no time did I have any questions or doubts as to what would happen. I was very satisfied with the service that was provided.

  • reviewiconExcellent Service
    Santa Clarita, CA
    Excellent service. Chris and his team are a pleasure to work with!

  • reviewiconGreat and on time service
    Santa Clarita, CA
    Great experience I will recommend SC Auto Air to anyone.

  • reviewiconFantastic service quick turnaround
    AC Repair, near Acton, CA
    They do fantastic work and turned my car around incredibly quick. Air blows cold again after a failed compressor.