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Best Auto Repair, Lake Mills

737 W Madison St Lake Mills, WI 53551

920-648-5478
Opening Hours
  • Mon 7:30AM - 5:30PM
  • Tue 7:30AM - 5:30PM
  • Wed 7:30AM - 7:30PM
  • Thu 7:30AM - 5:30PM
  • Fri 7:30AM - 5:30PM
  • Sat Closed
  • Sun Closed
CONTACT US

920-648-5478 | 737 W Madison St, Lake Mills, 53551

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 Weide's Auto Service, 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.

  • ASE Master Technician
  • BTB - CSC
  • Lake Mills Area Chamber of Commerce
  • Car Care Aware

Testimonials

I was driving on the highway in the pouring rain when my windshield wiper flew off and was hanging on by a thread. I was able to stop here with no appointment and they fixed it without 15 minutes. Incredibly friendly service and am very thankful for the gentleman that helped me, basically saved my life.
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