Best Auto Repair, Riverside

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  • Mon 8:00AM - 5:00PM
    Tue 8:00AM - 5:00PM
  • Wed 8:00AM - 5:00PM
    Thu 8:00AM - 5:00PM
  • Fri 8:00AM - 5:00PM
    Sat Closed
  • Sun Closed
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951-697-7708 | 6240 Box Springs Blvd Suite C , Riverside, 92507

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

Scotty's Auto Repair

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 Scotty's 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.

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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The Best Auto Repair Shop in Riverside and Moreno Valley for over 20 years. The are Knowledgeable about all our cars. I highly recommend them for Smog's and all repairs. Awesome Shop, give them a call!

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My family never trusted anybody but my father to work on all of our vehicles, when he passed away three years ago we were all desperate to find someone that we could trust to work on our vehicles. When we found Scotty's and saw the way that he and his wife ran the business we knew the entire family would stick with Scotty's because of their sincere honesty, their affordability and their family oriented way of running the business. I highly recommend Scotty's!

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Scotty's Auto Repair is amazing! I wouldn't take my care anywhere else. The owners and staff are all incredible people!

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Scott and his team are among the best mechanics in the area...and even more important, they have integrity! They stand behind their work and will do whatever is necessary to make it right! I have absolute confidence in the work they do!

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I brought my 2007 4Runner in for a smog check. As always I was provided excellent service. Scott had me out in less than 45 minutes and that included a courtesy check of the entire vehicle. Always a great experience at Scotty's.

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Scotty's has time and again demonstrated incomparable service. Our latest experience involved a last minute smog test for a private vehicle sale. With one phone call, Caren was able to brief me on all of the requirements and immediately get me in to have the car smog tested. Scotty's literally saved the day. Thank you for being such a great business to deal with. It's truly a pleasure!

  • STAR Certified Test and Repair Shop
  • ASE Master Technician
  • Jasper
  • AAA Approved Auto Repair
  • IATN (International Automotive Technicians' Network)
  • ALL-DATA
  • IDENTIFIX
  • Mitchell1
  • Jasper
  • BG Products
  • Hertz
  • Centennial
  • Car Care Aware
  • Call Us For Service: 951-697-7708