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
What our clients are saying about us
We have established longterm and stable partnerships with various clients thanks to our excellence in solving their automotive needs!
Avus is a super clean, friendly, and professional environment. Got a general service as well as two failing engine mounts replaced here and the service and work was exceptional. Will definitely be coming back (1997 Porsche 993 Cabriolet).
5 Star Service
Called and scheduled an appointment due to a coolant leak. As usual, I was treated professionally and timely with a few suggestions for optional repairs. Avus has been taking care of me and/or my wife for over 15 years and I will not trust anyone else with my/our vehicle(s).
Trustworthy Auto Shop