Best Auto Repair, Charlotte

Interstate Motor & Auto Service
9800 Newell Hickory Grove Road Charlotte
NC 28213

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704-596-4110

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Interstate Motor DBA Newell Service Center Penske Truck and Cruise America RV Rentals
8533 Old Concord Rd, Charlotte
NC 28213

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704 921-4844

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

Interstate Motor & Auto Service


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 Interstate Motor & Auto Service, 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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Great place if you need auto service. Chris and Beaver are top notch.

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Great place to get your automobile serviced.

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This is, in my opinion, the BEST family-owned mechanic shop in Charlotte, probably all of NC. The owner, Beaver, is the most honest, honorable, and direct person I've ever met in this business. He expects the same traits in his staff. Youll never have to worry about them trying to "pad" your estimate.

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Independent Garage Owners of North Carolina
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