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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503-590-9798 | 12394 SW Scholls Ferry Rd, Tigard, 97223

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

Tigard SUV and Auto Repair, Inc.

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 Tigard SUV and Auto Repair, Inc., 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

Very happy with their work, keeping me up-to-date on progress. Also happy to have a loaner car available.

, 09/10/2021
I have been to the Valvoline next door to you many times and noticed your shop. You are now my first choice for any automotive repairs in the future.

, 04/02/2020
We have been using Tigard SUV since 2006. In that time we have had a number of car/truck issues come up. I feel very comfortable leaving our vehicle with Dan and his team. They really go the extra mile to figure out the exact issue and only fix what is required. Thanks for your great service and I will be a loyal customer in the future.

, 01/23/2020

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We can't begin to thank Chris and Dan for all the help and offer of more help for our very troubled car. The end result was good for us, however, it no doubt cost them a lot. Our thanks seems very small.

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This a wonderful team of auto professionals who are always willing to explain options which is invaluable! Love Chris and Dan at the front desk and my trusty tech who helps keep my cars in running awesome!

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Great interaction and communication overall. Gave us honest assessment with no BS. Will definitely use Tigard SUV again.

  • ASE (Automotive Service Excellence)
  • AAA Approved Auto Repair
  • BG Products
  • stateoforegondeq
  • NW Auto Trade Assn.confidenceplus
  • Car Care Aware
  • Call Us For Service: 503-590-9798