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 Avus Autosport, 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:
Truck and Car AC Repair Services
Freon Recharging Services For Your Car Or Truck
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Hands down the very best shop anywhere. Their trio of technicians are fluent in both classic and modern Porsches and BMWs. Their quality of work and attention to detail are unparalleled. The entire team at Avus is passionate and it shows in their quality of work. We have serviced our two classic BMWs and our later Porsche 911 with them with exceptional results.
Sandro and his crew here at Avus Autosport have been the most accommodating and friendly staff I've had the pleasure of working with. Their work is also excellent and their customer service is unparalleled. They have taken great care of my car and I'll be visiting them again for any issue that I need fixed.
