Skip to main content

Best Auto Repair, Palatine

CONTACT US

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 Action Auto Services, Inc., 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)
O'Reilly Auto Parts
ASE Master Technician
autozone
advanced
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!

They’re amazing but also very good at what they do. The staff is also very kind and will answer your questions on the spot. I’ve been to many mechanic shops and they are by far the best because they understand their clients needs when it comes to our vehicles. quotes-image
, 07/02/2024
reviewicon
Replaced my horns that went bad. They used aftermarket which was fine. And did the job for over 100 less than the next auto repair shop that quoted me aftermarket parts. No issues with trying to use this place again.quotes-image
, 04/22/2024
reviewicon