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 Automotive Service Center LLC, 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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We have been going to Jeff's shop for a few years. Jeff and his team of mechanics are very efficient, and the quality is exceptional! ASC makes sure our vehicle is running top notch for us when it is returned. They personal drive our vehicle to check for everything before sending it back. They are very fast, and return our vehicles to us in a short amount of time. Always there to help us in a pinch! Reasonable and affordable pricing. They treat you with a personal touch service from the moment you walk in! We won't go anywhere else! 10/10 recommended by us. We tell all our friends and family to call Jeff! One of the best! One of the nicest, cleanest, and organized shops around! So happy to be apart of ASC!
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