Best Auto Repair, Suwanee

7120 McGinnis Ferry Road Suwanee
GA 30024

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D.C. Auto

 (334 Reviews)

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

D.C. Auto


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 D.C. Auto, 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


Reviews

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Very courteous and knowledgeable, they answered all my questions, my wife and I were very satisfied with the service. David and Mary L

, 01/20/2022

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Love this place can't say enough about it

, 01/19/2022

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I had been dealing with an issue with my truck for years and been to multiple mechanics with differing "solutions" these guys solved the problem within a couple of days. The only hold up was just waiting for parts, but the fix took no time at all. Great service overall.

, 01/15/2022

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