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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 503 Auto Repair, 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.

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Testimonials

reviewiconHighly Recommended
Keizer, OR
I woke up today so stressed because my car has been having issues and I decided it was time I took it in! I was so worried it would crash on me but 503 Auto Repair Absolutely had the best customer service hands down i could ever ask for. they went above and beyond for me and this mama is just so thankful. Had my car ready within hours + it's safe to drive again. It was extremely inexpensive as well!! if you are having car issues - this is THE place to go!! Thank you to all the men at 503 for helping me!!
~
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reviewiconAmazing Service
Keizer, OR
Brandon replaced the the serpentine and water pump belts and and did some lighting work on my 2014 mazda3 fast and right. Great experience!
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