Best Auto Repair, Raleigh

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  • Mon 8:00AM - 5:00PM
  • Fri 8:00AM - 5:00PM
  • Tue 8:00AM - 5:00PM
  • Sat 9:00AM - 1:00PM
  • Wed 8:00AM - 5:00PM
  • Sun Closed
  • Thu 8:00AM - 5:00PM
  • Install Appointment Only on Saturday

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

Working Hours
  • Mon 8:00AM - 5:00PM
    Tue 8:00AM - 5:00PM
  • Wed 8:00AM - 5:00PM
    Thu 8:00AM - 5:00PM
  • Fri 8:00AM - 5:00PM
    Sat 9:00AM - 1:00PM
  • Sun Closed
    Install Appointment Only on Saturday

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 NC Auto Glass, LLC, 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 People Say About Us

Johnston County
  • , 08/24/2021

    I called NC Auto Glass this morning after my driver's door window shattered on my way to work. Every other place I called was completely booked - most places had openings 2 days from now. They were very responsive and worked to fit me in the same day. They arrived promptly and were fast and professional, and even vacuumed up the broken glass from my car! Replacing the entire window was done in less than an hour. I am so appreciative of their service during this stressful event and was thrilled with the result. I highly recommend NC Auto Glass and will be using them for future services!

  • , 04/23/2021

    This is the second time the awesome folks at NC Auto Glass have worked on my windshield. The first time my windshield was replaced, the second was a chip fix. The level of communication, speediness, ease of working with my insurance, and promptness on the day of the appointment made both experiences a pleasure. I live in an ongoing construction zone, so more glass dings may be in my future, but I definitely know whom to call if and when they happen!

Call us for service: 919-608-7199

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