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

Working Hours
  • Mon 8:00AM - 6:00PM
    Tue 8:00AM - 6:00PM
  • Wed 8:00AM - 6:00PM
    Thu 8:00AM - 6:00PM
  • Fri 8:00AM - 6:00PM
    Sat 8:00AM - 4:00PM
  • Sun Closed

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 Trail Boss Off-Road, 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 People Say About Us

  • reviewicon

    These guys went the extra mile aligning my heavily modified truck, ensuring it was done right. If you're looking for a shop that's cares about it customers, this is it!

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    Absolutely awesome staff and repaired my 4x4 like new quickly with second to none quality. Customer for life and all my friends will be advised about Trail Boss. Thanks guys

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    These guys know their stuff. Very professional, honest, and fair. Their pricing is very reasonable. I highly recommend them for your off-road needs.

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    They were very courteous and knowledgeable. They even helped me out with a transfer case magnet that I had misplaced from my original housing. This was the only piece I was missing from putting my transfer case back together and Trail Boss was kind enough to provide one for me! Now I'm back on the road! Thanks guys!

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    Installed a lift kit over the weened myself and had to get a 4x4 alignment. Not only were the guys at Trail Boss Off Road able to squeeze me in that Monday morning but got my Jeep done earlier than they said and was under the estimate quoted also. Great service and knowledge of all things off road. Thanks Jeremy, you have gained a customer for anything my Jeep needs.

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    They did such an excellent job I couldn't have been more happier. I went back a second time to get more work done and not only did they again do a great job but fixed all the screw ups the place I had originally got work done did. If you want great, honest quality work done with great customer service this is the place for you. My hats off to you guys.

Call us for service: 520-744-6236

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