757-858-0744 | 5333 E Princess Anne Rd, Norfolk, 23502
Replace Your Car's AC Thermal Expansion Valve or Orifice Tube
Princess Anne Automotive Center
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 Princess Anne Automotive 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.
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James Edward Knarr, 04/04/2022
I would recommend this place to anyone. A close friend referred them to me and I have used them more than once. They have always been very courteous and very fair with their dealings. Two weeks ago my wife needed a last minute inspection. They let her know she needed a tire to pass, and let her know of some things to get checked. But, they made it very clear they would only do the work to make the car pass inspection so that we can consider our options for further work at another time. There tire cost and installation was very inexpensive. I definitely trust this repair shop.