Working Hours
  • Mon 7:00AM - 6:00PM
    Tue 7:00AM - 6:00PM
  • Wed 7:00AM - 6:00PM
    Thu 7:00AM - 6:00PM
  • Fri 7:00AM - 6:00PM
    Sat 8:00AM - 1:00PM
  • Sun Closed
    Saturdays
    Emissions Only 8AM - 1PM
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203-426-7145 | 3 Commerce Rd, Newtown, 06470

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

Newtown Car Care Center

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 Newtown Car Care Center, 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

Failed my first emissions test. Tyler let me know exactly what I needed to address the issue - when I came back on a busy day, he got me in and out right away. Top notch customer service.

, 07/30/2021
I needed a VIN verification on a big truck for 10 bucks. I was out of there in minutes! No back burner right on it! Thanks for the great service!

, 06/18/2021

reviewiconI cannot recommend this gem of a business more highly!
Newtown, CT

Wow. I don't often think about the places/people who fix my car, but Newtown Car Care Center deserves special recognition. Just walking in the door was an experience; their waiting area is so cozy that I felt like I was in my living room, rather than an auto repair shop. And the folks who work there treated me more like visiting royalty than a customer. They could not have been nicer or more friendly. Johnny took care of me immediately and, thereafter, refused to take even a token gratuity from me for his trouble (turned out that I didn't need work after all). I only wish my car HAD needed repair ... that way, I could have claimed that I had contributed to their continuing success. I cannot recommend this gem of a business more highly! AAA+++

, 03/08/2021

reviewiconI trust them with my life!
Newtown, CT

I am very lucky to have found the incredible people at Newtown Car Care Center. They are thoroughly knowledgeable with high standards of professionalism and they do it all with honesty and fairness. They talk to you and give you real options. I have been going there for about 15 years and no matter where I live, I will continue to drive to Newtown Car Care Center anytime I need maintenance on my car. Everyone that works there is an attentive, caring person. I trust them with my life.

, 02/15/2021

reviewiconOdometer Issue
Electronic Services, near Newtown, CT

We had trouble getting the odometer reading, which of course is required. Johnny and the customer service people were great. The odometer light finally went on enough to read and we passed! Thank you again, Johnny, for all your help.

, 01/19/2021
Brought my car in for emissions inspection , it failed because I had just replaced the battery. John koshel explained why it failed and what I needed to do to pass. I did what he told me and returned for a retest which I passed. Thank you so much John for your help and caring.

, 11/24/2020
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    Call Us For Service: 203-426-7145