Best Auto Repair, Boulder

CONTACT US
YelpGoogle +Facebook

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

Working Hours
  • 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 8:00AM - 1:00PM
  • 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 Rob'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 People Say About Us

  • reviewicon

    Rolled in with no radiator fluid and no appointment this week. The team here diagnosed the issue (cracked hose flange), took care of the problem and kept me in the loop. Had the car back the next day, and they had other good preventive advice as well. Friendly and helpful. Thank you

  • reviewicon

    I got recommended to this place by Barnsley tire. They machined my rotors for a fair price.... I'm happy!

  • reviewicon

    Rob's has done work on my car several times with great results. I got a flat tire on the way to work today and called to see if they could help me. Jeff said he would stay a little late to help me out and he pulled a broken screwdriver out of my tire and plugged it in a few minutes so I could get back to work. Rob's RULES.

  • reviewicon

    Had issue with my '03 elantra starting. AAA jumped me and told me I should get my alternator and possibly my battery replaced. Dropped it off at this place on a sunday and said there was an issue with the battery and alternator. A less reputable place would easily have said yep and would have went ahead and replaced both but the mechanic I talked to was honest, told me the alternator was fine and a new battery was all I needed. Tough to find that kind of honesty.

  • reviewicon

    Great mechanics always friendly fast service recommend to anyone in boulder who needs reliable car repairs

  • reviewicon

    Great mechanics always friendly fast service recommend to anyone in boulder who needs reliable car repairs.

Call us for service: 303-449-0420

ASE (Automotive Service Excellence)
ASE Master Technician
BG Products
Interstate Batteries
Smart Start
  • Car Care Aware