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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 Appointment Only
  • 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 McCreless 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.

What People Say About Us

  • reviewiconHighly Recommended

    I have taken my car so many places and no one could figure out what was wrong. I felt like I was spending more on repairs than I was the actual vehicle until someone recommended McCreless Automotive. From the beginning they provided excellent customer service and unlike other places which try to take you for all you have, they told me what was critical and what could wait to be fixed. I have referred my friends here and now we all won't take our cars anywhere else!!!!

  • reviewiconHighly Recommended

    My car was needing engine and suspension repairs and Jesse left it feeling brand new again. Highly recommend !!

  • reviewiconTrustworthy Auto Shop

    Went here to have my husband's car fixed and this place is very trustworthy and great at what they do! ..Jesse was very professional ,honest, forthcoming and awesome! I will be bringing both my husband's and my vehicle here going forward! Keep up the great work guys!

  • reviewiconTrustworthy Auto Shop

    Finally a mechanic shop I can trust... My 3rd time coming here and the price is always right. And my truck is ready on time..Thank you!

  • reviewiconFast and Courteous

    Had issues with my AC not working and they got it working for me at an affordable price!! Really great people working here!

  • reviewiconFast and Courteous

    I have taken my car so many places and no one could figure out what was wrong. I felt like I was spending more on repairs than I was the actual vehicle until someone recommended McCreless Automotive. From the beginning they provided excellent customer service and unlike other places which try to take you for all you have, they told me what was critical and what could wait to be fixed. I have referred my friends here and now we all won't take our cars anywhere else!!!!

Call us for service: 210-476-5221

ASE (Automotive Service Excellence)
  • Car Care Aware