Best Auto Repair, Millington

Financing through Napa
1905 Long Hill Rd Millington
NJ 07946

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908-647-7984

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8:00AM - 6:30PM

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Long Hill Auto Service

 (45 Reviews)

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 Long Hill 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.


Reviews

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Bob and his team are fantastic. I broke a bolt doing my own brake job, went down to Long Hill Auto at 5:30 on a Friday and they went above and beyond to help me out. Removed the broken bolt and found a replacement bolt to allow me to finish the job. They didn't need to do any of this, but they chose to be a huge help. I will definitely return to this place, very quality people. Thanks again!

, 11/16/2024

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The guys working there are super nice and friendly

, 10/19/2024

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The staff here are great people. I would recommend checking them out before anyone else.

, 10/02/2024

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