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 Genesis Auto Service, 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


Reviews

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Mark and Craig are amazing. They were able to squeeze me into their very busy schedule and get my car running in less than 4 hours. They are helpful, honest and quick. Would recommend to anyone.

, 05/15/2022

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Mark Soto was the best person I've ever talked to there. He's a very smart man! He definitely deserves a HUGE raise.

, 02/20/2022

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Been coming here for quite some time now, about 3 years, and have took multiple vehicles here now. Started off buying Amsoil from them and built a relationship with them since. Mark is very friendly and knowledgeable as well as Carl, Mark provides great customer service every time over the phone and in person and Carl as well as customer service also provides good quality work if not great. Take all my cars here from Oil changes(Engine, Transmissi­on, Gear, etc.) and suspension work. They are very knowledgeable and honest, and let's all be honest it's very hard finding a reliable, knowledgeable, and HONEST mechanic that provides quality work and gives you piece of mind. Took my car in for a trans flush and I pointed out some suspension noise that NOONE else, No other shop could figure out the noises point of origin and Carl and his team found it in less than 5 minutes, gave me a price and they took care of it. I could hear the noise anytime I drove, it was very audible from inside and outside and it was embarrassing and annoying, dealt with it for a while and Carl's crew took care of me and my car and gave me piece of mind again. I appreciate you fellas, I'm a life long customer now, thanks to Mark, Carl and Pedro and Genesis Automotive. Highly recommended. Very trust worthy. Call ahead to see if they are available and not booked up so that you don't make the trip only to find that they don't have time to take your car in and leave you with a bad taste of them over your poor planning and leave them a bad review because of your own fault. Make an appointment and I promise it's worth the wait.

, 11/01/2021

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