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 Tucson Transmission Auto & Diesel Repair, 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.
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What Our Customers Are Saying
Maybe the best Transmission shop in AZ? I'm on Vacation and become in trouble with my rear end. Asked two other shops, one offered an appointmend next month, the other was not interested. Mike told me: "come in, we will have a look" Finaly: Plenty of Experience in the house, a great team with heart and soul for screws and nuts, the Differential of my 2005 GMC Sierra 2500 HD runs smooth and quiet again now. They changed all diff- and rear wheel bearings and it took only three days. Professional Service! And so AIRSTREAM and me can create more memories on our Roadtrip. Thanks to Mike and the Team for make all these posible! Kept you in best memories.
Tucson, AZ
I took my truck to them for transmission work and they did heck of a job. Every one was very helpful, would definitely take it back to them if anything else comes up. Trucks running great.
Tucson, AZ
We are extremely satisfied with Tucson Auto and Diesel! My husbands truck was pretty much dead and Josh the owner contacted us through Facebook and got us in the very next day! We had some trouble getting our truck there, but nonetheless we got it there. We expected our truck to be out for a couple days considering we had just dropped it off, and they got it back to us the same exact day! If I could recommend anyone to go anywhere for their trucks it’s this place! 10/10 experience!
Tucson, AZ
Holy Cow! This place knocks it out of the park. Super friendly staff especially the greeters at the front desk. The cost for my KIA Transfer Case replacement was very reasonable compared to the "crooks" at Royal KIA service department. I will be going back here for sure, highly recommended.
Tucson, AZ
