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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 Dixie Motors, 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.


Partners

ACDelco
ASE (Automotive Service Excellence)
Jasper
ALL-DATA
IDENTIFIX
ASA (Automotive Service Association)
Car Care Aware

What our clients are saying about us

We have established longterm and stable partnerships with various clients thanks to our excellence in solving their automotive needs!

We were so happy THAT OUR CAR WAS FIXED SO QUICKLY (it had been necessary to extend our stay at the house we had rented, and additionally to procure a car from budget, all extra expenses). We picked up our car and drove to Elkin, NC, for a night with our sister-in-law; the next day we headed for Johnstown, PA, for Thanksgiving dinner with my wife's brother's family. It was truly a memorable Thanksgiving: great food, good conversation and a thankful atmosphere, all because of the wonderful people at Dixie Motors. So, my recommendation is for anyone travelling in the Savannah area, who needs an auto repair, to give the fair and caring people, and excellent mechanics, at Dixie Motors a chance to make your travel days bright and fruitful. And from my immediate Ohio family and two Georgia sons, here's a great big THANK YOU, DIXIE MOTORS!JERRY AND LIBBIE HATMAKERLANCASTER, OHIOP.S. We are back home and have had NO TROUBLE with our car since leaving Georgia! quotes-image
, 11/22/2021
reviewiconSAFE BACK IN OHIO!
Savannah, GA
Great Experience! Honest, friendly and great work. We were recommended by a friend and so thankful.quotes-image
, 08/06/2021