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 Alexander's Automotive & Towing, 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
AC Evaporator Services
What People Say About Us
Got my car inspected here. Staff was polite, and it was done quickly. Have rented a U-Haul from them in the past and that experience as good as well.
Dean is great to work with. The guys (mechanics) always do a nice job at addressing the issues
of the cars I have brought to them for fixing. Should your CHECK ENGINE light come on....Alexanders is the place to bring your vehicle to.
You can't go wrong with Alexanders Automotive.
I rarely write review or recommendation on internet, but if you're looking for a place to get your car inspected, this is the best place for that.
Great friendly service. Had a complicated issue with my car, but the crew was very patient and worked with me throughout the entire thing. I feel I got out of it all rather quickly all things considered, and for a great deal too.
The only place I'll take a vehicle now. They know what they're doing and how to get it done.
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Called for a tow and he got there and diagnosed problem to just battery and had us up and running in 5 minutes instead of charging way more for just the tow. Honest and good business from these folks.