859-431-3326 | 1420 Dixie Highway, Park Hills, 41011
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 Fort Mitchell Garage, 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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Dave Grinnan, 10/23/2023
I have a vintage 1947 Dodge truck. It had a sever vibration in the drive line. After consulting with several knowledgeable mechanics we could not determine the cause of the vibration. I took the truck to Ft Mitchell Garage. The next day they called and had identified the issue. With it being 75 years old it took me a while to locate replacement parts but once I did, problem solved. I can't thank them enough. They were very friendly and easy to work with. Being a 75 year old vehicle I was concerned about the bill for their services but I was pleasantly surprised. This is my new go to garage for auto work.