Best Auto Repair, Largo

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Call us for all your car needs! 727-575-7485

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 Randy's Auto Repair and Tire, 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

  • ACDelco
  • ASE (Automotive Service Excellence)
  • World Pac
  • Mitchell1
  • BG Products
  • Isiah Village
  • Car Care Aware

Testimonials

  • If you need a place to take your car Randy's is the place to take your car. I took my car in Friday and yesterday because of what was going on with my car and in a matter of just a day or two my car was fixed and it is running great thank you to Randy and the guys that work at his shop and thank YOU LORD because without Randy and his guys who work hard everyday my car would not be running the way that it is today. My experience at the shop was great, the service on my car was phenomenal and the service while I was there waiting was great as well. So like I shared if you need a place to take your car Randy's is the place to take your car. So thank you again Randy and the guys who work there everyday. Y'all are doing an amazing job. Blessings Shalom
    , 09/12/2022

  • I'm a new snowbird and wanted to ensure my 13 year old Toyota Tacoma would get me back to Michigan safely. I wanted the serpentine belt replaced and the brake fluid flushed. Turns out my truck needed rear brakes and 3 universal joints replaced. They kept my truck overnight and made all the necessary repairs for me. As a bonus, they fastened and quieted an annoying exhaust heat shield rattle. GREAT JOB, GREAT SHOP. THANK YOU
    , 04/01/2021

  • We were on vacation and my starter failed. Was faced with the daunting task of finding someone honest and reliable to fix it. Randy did just that and he charged a fair price! Would definitely recommend using him.
    , 03/26/2021

  • Well, I have to admit that all these small private operators are not sub-par mechanics. Randy, did front end struts, replacing both sides. Car was fixed promptly and done extremely good. My son wanted proof the work was done correctly, so off to Ford he goes, comes back and said the wheel alignment, was dead on the money. Since that time, Randy called me on 12/22/2020, to make sure all was still good. Bottom line, don't take your car anywhere else for repairs. Randy is HONEST, understanding, FAIR PRICED, and does what he says he will do. Thank you again for your great work.
    , 10/20/2020

  • reviewiconRandy is fantastic!
    Car & Truck Care
    I broke down at a major intersection and remembered previously looking into this place and the great reviews. I called and he immediately rushed over to help me while I waited with the police. He saved me tow truck fees as well by not giving up until he found a way to get my car to the shop. Such a nice man and as a woman, I am forever grateful for the kind and honest work he does! One in a million mechanic, truly!
    , 04/02/2020

  • reviewiconHighly Recommend
    Car & Truck Care
    I meant to review them when they replaced my brake pads and rotors. I had gone to CarMax to ask for them to do the same repair and they said it didn't need to be done. Randy was quite honest about it needing to be done soon. Got it done right then and haven't had any issues. Today, I got a flat tire (after having two replaced elsewhere). Immediately called and Randy told me I could bring it in. They patched up the tire and rotated them so the new tires would be in the front which should prevent this from happening in the future. Also, got an oil change as well. I highly recommend them to anyone in the Pinellas area. Moving forward, I'm going to remember to use their services for everything.
    , 02/19/2020