Best Auto Repair, Florence

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Call us for all your car needs! 843-667-6679

AAA Approved Auto Repair Facility NAPA

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 Dunrite 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

ASSOCIATIONS

  • AAA Approved Auto Repair
  • ATRA
  • ASE (Automotive Service Excellence)
  • NAPA AutoCare Center
  • Jasper
  • Car Care Aware

Testimonials

  • reviewicon
    Dunrite are God sent people they towed my vehicle and repaired it, quickly and without delays. They provide quality services and are willing to work with you on services there, not just a shop for profit they are a place that cares about the person and understand that you need your vehicle. I recommend anyone to go to Dunrite for any issues with a vehicle!!!! They were Godsend to me!
    , 10/01/2021

  • reviewiconGreat Trip
    My wife and I were traveling to the mountains for a mini vacation when our car broke down outside Florence. AAA towed our car to Dunrite Auto and Transmission. Best thing that could have ever happened. The very professional woman at the front desk had already filled out the paperwork by the time we got there. The car was looked at very quickly. Marty advised us that we were likely looking at significant repairs but it would need a thorough review before he could be sure. We felt confident in leaving the car with them and so we rented a car and got on our way. Marty called us the next day to fill us in. "Likely a significant cost to repair but couldn't be sure until they got started" He was so professional and knowledgeable that I gave him the OK to proceed. He ordered the parts and called me the next day to say that repairs had been finished and it cost considerably less than his estimate! We ended up having a great trip after a bad beginning. We've all heard horror stories about car repairs, but I can tell you this was a fantastic experience. Professional, honest. I can't say enough! Oh and by the way, the entire place is as clean as a whistle including the washrooms! Many many thanks to your whole team!!
    , 10/09/2020

  • reviewicon
    My wife and I were on our way to Florida when a loud screeching noise arose that seemed to be coming from a wheel. I stopped at the first repair shop I could find but the owner wasn't inclined to even listen to my problem. I took the next exit in search of a repair shop when I accidentally met George at a convenience store. He was coming out of the store when I asked him if there was a automotive repair shop nearby. He asked what my problem was and after hearing me out he said, "I work right next door, we can fix that for you, follow me." Right next door was Dunrite Automotive & Transmission. The owner, Jason, was on the phone when we arrived but George stayed right there to be sure that I was taken care of. It only took a few minutes for John to know what the problem was fixed within the hour I was back on the road .. problem solved with no up-selling. This was late afternoon on a Monday when they had all 10 stalls full of automobiles under repair. Not many people would do this for a stranger passing through, knowing that they would never see us again. I can't stress enough how impressed I was with Jason and how grateful I am for the honesty, time and care that was afforded two strangers late on a busy Monday afternoon. Thank you.

  • reviewicon
    ust spoke with my mom who was driving from Maryland to SC when her alternator went out 100 miles from her home. She called AAA and was offered the option of being towed to Dun Rite Automotive or she could be towed all the way to her home if she preferred. She chose Dun Rite and I can say from talking to her she was THRILLED that she chose Dun Rite. The young lady at the desk was incredibly friendly and immediately made her and her new pup feel right at home, offering a fresh bowl of water for the pup. The general manager immediately diagnosed the alternator issue and ordered a NAPA warranted replacement part. He assigned 2 mechanics to the job to ensure it was completed quickly and got her back on the road before their closing time which was 45 minutes away. The new alternator was not a "rebuilt" but new and was priced at a very fair NAPA price with a very inexpensive $99 install price (plus the 20% AAA discount added in as well). As someone who has traveled the I-95 corridor and had poor experiences with breakdowns and the predatory repair service stations before, I was incredibly happy with the experience my mom described to me when working with Dun Rite Automotive. They are the real deal and I can assure you that my immediate family have been told of the experience and advised that if ever we experience any automotive problems within the Florence area, this is the shop we are going to! I felt it important to write this review to express my sincere gratitude to the people at Dun Rite Auto for the incredible professionalism and courtesy they demonstrated to my mom. You could not have made her feel more safe and secure and for that I am very grateful. As a son, there is nothing more comforting and satisfying than knowing that there are still businesses out there that believe that great customer service at a fair price is still a priority. Thanks again for your incredible standard of service!

  • reviewicon
    While enroute to Florida from PA I ran over an animal on I95, which smashed the bottom of the radiator in my Honda Accord. I contacted AAA for a tow and they gave me 2 options, and thankfully I chose Dun-Rite (Ross at the Petro also recommended Dun-Rite). Excellent service from the time my car was towed, dealing with the insurance company, car repairs, rental car and then picking up my car on the way back from Florida. Thank You so much Brenda and team for making a very frustrating and upsetting experience not so bad after all. I got to meet all of you at least!!! Again THANK YOU!!!!

  • reviewicon
    My sons were traveling south on 95 when his engine stop running he pulled over to the side of 95. The jeep would not start they were stranded hauling a trailer and a dog. Not knowing the area didn't know who to call or who would be honest and reliable. They called several companies and they could not guarantee they would look at his jeep on that day. It was a Friday and he didn't want to be stuck for the weekend he was starting a new job on Monday in Florida. I found Dun-Rite Automotive on the internet called and spoke with Lucas explained the situation to him. He then called my sons and towed his jeep, trailer along with the dog back to his business. The guys had been traveling all night so when they got there they were exhausted, everyone made them comfortable even the dog was welcomed. While Lucas' team worked on the jeep the guys caught a nap. It took some time to figure out the problem being "electrical" anyway the boys were back on the road before dark. As a mother I want say "Thank you for taking such good care of my sons and grand dog"