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 Hans Imports, 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

BBB
ASE (Automotive Service Excellence)
NAPA AutoCare Center
Bosch
ASA (Automotive Service Assocation)
IATN (International Automotive Technicians' Network)
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!

Excellent shop. Thorough and honest. I've had all sorts of repairs and routine maintenance done on my older (2006) Subaru. My car is old enough to vote and it runs flawlessly thanks to Omar and his team. Work is consistently high quality. If you care about your vehicle this is the place to bring it. quotes-image
, 05/30/2024
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Very impressed with Han's Imports. Did a nice job with maintenance on my BMW and my wife's Benz. I also appreciate the thorough check of the rest of the car as part of their 1st look at the cars. I'll be back.quotes-image
, 02/01/2024
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