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

Marty'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 Marty'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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Im SO pleased with you! I intended on sending a thank you card! Im sending in both 20 year old cars. I appreciate that you're always there for us!???

, 01/18/2022

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Great great place. First thing, I'm a very picky critic and will 100% call out some bs. They did a full diagnostic and told me everything that needed fixing. They fixed only what was necessary to get me driving safely, then gave me a list of the rest that needed fixing in order of importance. Great great place, highly recommended.

, 01/07/2022

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Everyone has gone above and beyond for myself and family. They really know the business and know people well. We will be a trusted customer for long time to come??.

, 11/27/2021

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