Replace Your Car's AC Thermal Expansion Valve or Orifice Tube
Ernie's Local Automotive Service
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 Ernie's Local Automotive Service, 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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Excellent work at very reasonable prices.
Michael Tom, 12/03/2021
Larry and his crew are just fantastic, very reasonable. I can't say enough how completely satisfied I am. I will never go anywhere else!!!! What's more important is the honesty. To me that is everything!!!!
Jackie Schwarz, 11/12/2021
My family has trusted Ernie's Local Automotive to maintain vehicles for over 20 years. My father trusted their work and now I continue to trust their work. They know their business and are excellent in determining issues with your vehicle. As a family business, they care about their customers. The work is always above satisfaction and the customer service is unparalleled. Having poor experiences at other mechanics in the past when living out of state, coming home and taking a vehicle to Ernie's, you'll get honest feedback and assessment for your vehicle's health! I would 100% recommend Ernie's Local Automotive to anyone in need of vehicle maintenance.
Mike Ugorek, 10/06/2021