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 Pointe AutoTech, 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:
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Honest, quick, cheap. Excellent service and down to earth guys.
Being female has put me at the mercy of a wide variety of auto technicians. Pointe Auto, in particular, Mike has restored my faith when it comes to finding an honest repair facility, especially when working on the older vehicle. His place of business was put on the radar for me when the dealership actually refused to work on my van. The tow driver who was not allowed to even unhook the vehicle was directed to Pointe Auto. It was a blessing in disquise. At every turn they have gone out of their way to insure that I could get back on the road safely. I am greatly indebted to their great professional service. They are highly recommended by me for their wonderful service.