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

Cottin's Automotive


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 Cottin's Automotive, 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

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I don't think I have ever enjoyed an oil change as much! Brian and his employee/associate Dimitri were professionals but still so friendly.(Scary good)HONEST PRICES!! There was no dawdling over the work,but not rushed. They took time to explain easily what is happening with vehicle but wasn't trying to upsell,which is why I'd go back time and again!

, 09/20/2021

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Brian is a personal friend of mine and operates His business with integrity.

, 07/01/2021

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Great and thorough service! Friendly reception. Will definitely continue to use Cottin's for car service needs.

, 07/01/2021

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