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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 Frankie & Johnnie's Garage, 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.

Contact Us Today!

Got questions? We've got answers! Drop us a line, give us a call, or even stop by. Our team is eager to help you with any auto repair needs you have. Let's get you back on the road safely and swiftly!

What Our Customers Are Saying

Excellent work! My whole family goes to get their cars repaired. They are reliable and reasonable. I recommend them!

Went to emissions testing facility and van would not start. Frankie was so gracious and helpful. Immediately diagnosed the problem. Thank goodness for his professionalism. If you have a vehicle problem, see Frankie.

Great Service. They stayed longer to complete the job which was really required. They also gave me an option to buy the parts directly from Napa that had an option for rebate.

Frank was a generous guy, greeted us warmly and had a small chat. Unfortunately he had no help that day, but still committed to staying later til everything was done. Explained the work done and gave a breakdown of the reasonable costs. Will come again!

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