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    Tue 8:00AM - 6:00PM
  • Wed 8:00AM - 6:00PM
    Thu 8:00AM - 6:00PM
  • Fri 8:00AM - 6:00PM
    Sat 8:00AM - 3:00PM
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937-294-6653 | 4710 S Dixie Dr, Moraine, 45439

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

Slone's Automotive Service

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 Slone's Automotive 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.

More AC Repair Services:

Truck and Car AC Repair Services

Freon Recharging Services For Your Car Or Truck

AC Evaporator Services


What Our Customers Are Saying

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Nice, honest guy that did great work. Just as I was told by a friend. 5 stars!

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Very experienced with diagnosing difficult problems. Very fair pricing and honest. Diagnosed our family's Suzuki drive belt issue that another shop couldn't figure out. Properly troubleshooted a backup light issue on our Tahoe. Highly recommended!

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Always fair and nice guys.

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This place is awesome! They fixed my car properly for a fair price. Their staff are friendly and understanding.

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This has to be the best auto repair shop on earth. These guys are friendly, do great work, and they charge reasonable prices. I highly recommend them.

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Fair and friendy. Has handled my company business for years...and for years to come.

  • ACDelco Professional Service Center
  • ASE Certified Master Auto Technician
  • U-Haul Authorized Dealer
  • Interstate Batteries
  • Jasper Engines & Transmissions
  • Car Care Aware
  • Call Us For Service: 937-294-6653