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Best Auto Repair, Katonah

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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 Whitehall 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.


Partners

ASE (Automotive Service Excellence)
CARQUEST
TECH-NET
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!

John at Whitehall is the best. He listens to your problem and is understanding. The price is reasonable if not less than other places. The work is done on time. quotes-image
reviewicon5 Star Service
Haverstraw, NY
John is a people person, always takes time to greet people warmly whether in person or on the phone, trust his knowledge and suggestions, this is a very well run operations and highly recommend Whitehall Auto Service. I think he personally works alongside his staff on all the cars that come in.quotes-image
reviewiconAffordable Auto Shop
Katonah, NY