Working Hours
  • Mon 7:30AM - 5:30PM
    Tue 7:30AM - 5:30PM
  • Wed 7:30AM - 5:30PM
    Thu 7:30AM - 5:30PM
  • Fri 7:30AM - 5:30PM
    Sat Closed
  • Sun Closed
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303-766-9227 | 16695 E Smoky Hill Rd, Aurora, 80015

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

Smoky Hill Auto 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 Smoky Hill 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.

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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I traveled from Las Vegas to Aurora Colorado and coming over the Pass my ABS lights came on and I was concerned so I researched places to take my car to be checked out and would take my extended warranty. Craig was very kind when I called so i decided to go there 1. because of his kindness and 2. His reviews. While having my car at the shop they found my alternator was bad . he called the warranty company and stayed on the line until he got a live person on the line . His staff was amazing and had my car ready for me in just a couple hours . They car runs great and it is ready to head back home without any worries. I highly recommend Smoky Hill Auto Service Center. Thank you Craig and your staff for helping me and getting my car safe for the road trip home.

, 06/15/2020

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I trust Craig immensely. Service has been consistently superb and timely and pricing has been reasonable. My wife loves this place. Would highly recommend Craig and his mechanics for your auto servicing needs.

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Great staff and reasonable prices. They have taken great care of my cars for years! What more can you ask for?

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Great people great prices. I brought my car in cause my head light was out and didn't have the piece to get the bulb out and they did it for free then I went to get my brakes done and got a great price. Everything is straight forward and they will take care of you. I will continue to bring my car here. Thank you guys

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I have had the timing belt replaced, my brakes done, and a few other things fixed at Smokey Hill Auto Service and I have no complaints what-so-ever. They have always done a great job! No complaints at all.

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Brought my car in for 60K scheduled maintenance. They did a great job, communicated well and did it a very fair price without trying to sell me unnecessary services. This is a shop you can trust, and that's hard to find.

  • ACDelco
  • ASE (Automotive Service Excellence)
  • Jasper
  • BBB Accredited Business
  • IDENTIFIX
  • NAPA
  • Interstate Batteries
  • Motorcraft
  • FMP
  • Car Care Aware
  • Call Us For Service: 303-766-9227