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 Raleigh Import Services, 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.
Contact Us Today!
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What Our Customers Are Saying
Awesome car service and great auto shop! Had me in out no problem. The entire process was seamless. They care about their customers and I would highly recommend!
Raleigh, NC
I can’t say enough good things about Raleigh Import Services! I contacted them to have a pre-purchase inspection done on a vehicle I was considering buying for my daughter. From the very first phone call, Chris was absolutely wonderful to work with. He was friendly, professional, patient, and genuinely took the time to answer all of my questions and make sure I understood the process. The owner personally performed the inspection and was extremely thorough. What impressed me the most was that they didn’t just do an inspection and hand me a report—they actually took the time to explain what they found and give me their honest opinion. Chris ultimately advised me not to purchase the vehicle. That meant a lot to me because they could have simply done the inspection, collected their money, and sent me on my way. Instead, they cared enough to be completely honest with me and help me avoid making a potentially expensive mistake. As a mom trying to find a reliable vehicle for my daughter, having someone I could trust during the process was incredibly important to me. I left feeling like they genuinely had my best interest at heart. If you’re buying a used vehicle—especially an import—I highly recommend Raleigh Import Services. Their honesty, professionalism, communication, and willingness to look out for their customers are exactly what you want from a shop. Thank you to the owner and especially Chris for taking such good care of me and helping me make the right decision! ⭐⭐⭐⭐⭐
Raleigh, NC
I generally don't reviews products or companies, but I went to Raleigh Imports after a troubling auto repair encounter and found them to be honest, expert technicians and genuinely caring. I am a 78 yr old widow and was scammed and left with an undrivable car. Five stars is not enough.
Raleigh, NC
Professional, prompt, reliable, honest and super nice!
Raleigh, NC
