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

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

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 ARS Automotive, 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

    Did a bang up job after a rear end collision, nice detailing looked like a new car

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    Amazing service, extremely professional and they did beautiful work. Looks like the day I bought it.

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    Friendly, polite front office staff. Willing to discuss any mechanical or cosmetic issues that arise. Honest, timely and good value for my repairs.

  • reviewicon

    Very friendly and exceptional work. Always able to fit our vehicles in and makes sure they are perfect for our employees

  • reviewicon

    ARS is the best! Better than 5 stars! I had my car in for repairs after I hit a truck tire laying in the middle of the parkway. The heat shield etc were damaged. Justin looked at the damage, ordered the parts and it was fixed within a week. Everyone is just great to work with. Also when I picked up my car they had it spotless and looking like new! I highly recommend them for ANY automotive needs!

  • reviewicon

    Do not waist your time with anyone else in the area Chris and his guys are hands down best in The area . I promise these guys are in a whole different category from other paint and body shops. Guaranteed I'll be a life long customer

Call us for service: 412-795-4059

BBB Accredited Business
AAA Approved Auto Repair
ASE Master Technician
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I-CAR TECH
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