760-744-5498 | 1288 West San Marcos Blvd Suite 107, San Marcos, 92078
Replace Your Car's AC Thermal Expansion Valve or Orifice Tube
Fast Automotive Center
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 Fast Automotive Center, 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:
I just moved into the neighborhood and needed an oil change for my car. There are so many auto shops in San Marcos! How to choose? I happened to get a welcome to the neighborhood coupon in the mail from Fast Automotive Center. So I checked them out on yelp and found that they have positive reviews. After calling to make an appointment for a couple days out, I showed up with my car for my oil change and was told it would be 30 minutes. They actually did call me and finish my oil change in 30 minutes! Ralph at the front desk was friendly and professional. It was the easiest and least stressful oil change of my life! I'll be going back for future car issues. They also did not try to up sell me on "necessary repairs" which I greatly appreciated. Thank you!