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

Morrison's Auto-Rite Inc


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 Morrison's Auto-Rite 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


Reviews

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Morrison's is a rare combination of highly skilled professional service and warm personal attention. They know my name. They honor their estimates of time as well as cost. They are a small, independent business where every employee seems to take pride in doing an excellent job.

, 01/06/2022

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Great service; you can tell they're not trying to nickel and dime ya.

, 12/29/2021

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This is a very professionally run shop. The customer service area is the cleanest I have ever seen for an auto repair shop. The service reps are courteous, the work is done well & the communication is great. I am very pleased with Morrison's & will continue to use them.

, 12/02/2021

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