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 Priority Auto & Tire Center, 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
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I highly recommend this business. Most people pass by places like this that aren't "well known" names but in this case that's a huge mistake. Back in March I got a flat tire had to get a tow because two bolts on the tire broke during the process of changing the tire. I got towed to Discount Tire they told me they don't fix tire bolts. The tow truck operator told me he would check out Priority Auto but they were already closed according to Google. We drove there to what seemed like a closed shop but the guys although off the clock were helpful and fixed the bolts, put air in the spare tire and and got me back on the road. Very reasonable with pricing and professionalism. THEY DID NOT ATTEMPT TO UP SELL ME! I will be back very soon