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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 Patterson Performance 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.

More AC Repair Services:

Truck and Car AC Repair Services

Freon Recharging Services For Your Car Or Truck

AC Evaporator Services

ASSOCIATIONS

  • ASE (Automotive Service Excellence)
  • Car Care Aware

Testimonials

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    Honest and reliable and all of the staff are knowledgeable.

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    You can trust these guys for diagnostics, replacement and repair!

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    Excellent place to get your car fixed!! Eric and Team did a fantastic job on my Saab 9-7x.

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    I've been a Patterson Performance customer for almost 10 years and have never been happier with a mechanic before. His team is friendly, honest, helpful and very knowledgeable.

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    They know cars, honest, don't try and sell you things you don't need. Friendly reliable service. Customer for 7 years highly recommend.

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    I have had Eric work on my vehicles on four different occasions over the past three years and he has treated me exceptionally well and very, very fairly. None of his work has had to be redone or "tweaked" after the fact and the charges were extremely reasonable. Not only was his work terrific but he and Kathy could not have been more gracious. I highly recommend Paterson Performance.