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16289 W Colfax Ave Golden
CO 80401

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Andersen's Foreign Car Service, LTD

 (194 Reviews)

Replace Your Car's AC Thermal Expansion Valve or Orifice Tube


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 Andersen's Foreign Car Service, LTD, 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.


Reviews

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Andersen's is my go-to car repair service for my BMW X5 Diesel. They are personable, professional and so much more reasonable in cost than any dealer. Plus, they take the time to explain what's going on and never do unnecessary work. I know I can trust them. I appreciate their approach very much.

, 03/29/2024

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Always a great experience! They take care of my car and are upfront with everything!!!

, 02/28/2024

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This place is great, I've been using them for several years. I've taken my VW here for regular maintenance, and I also get diesel emissions testing done here for my truck. Every time I've had a great experience - absolutely zero complaints!

, 01/30/2024

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