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

Mike's Auto Tech


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 Mike's Auto Tech, 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

Quote reviewiconReliable and Professional
General Services, near Van Nuys, CA

Very reliable mechanic, gives great prices and gets jobs done in a timely manner. I never have to bring my vehicle back after the repair.

Best place ever...honest people.. price is great and the job as well ... clean and professional jobs.

Quote reviewiconHighly Recommend
General Services, near Van Nuys, CA

I met this guy about ten years ago. He started working on my wife's mini van. He only did what was necessary. He fixed it on the first try. I tested a second time and delivered with flying colors. Two years later I recommended this guy to my boss and he's proven himself over and over. He is honest and fair with his work and prices. I will always recommend his services to all.

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