480-969-5900 | 452 S Ext Rd, Mesa, 85210
Replace Your Car's AC Thermal Expansion Valve or Orifice Tube
Advance Auto Repair
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 Advance Auto 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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Kayla P., 02/01/2021
I went to Advance Auto Repair and I wish I would have been going to this place with my car troubles! And being a women, you already know how many mechanics try to take advantage of us. The man here did not do that or make me feel like I didn't know what I was talking about. He was very polite and upfront with my car. The pricing is amazing so is the service! I will definitely be coming back for my car to get worked on. Highly recommend this place!