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

Cranks Auto Repair


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 Cranks Auto Repair, 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


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Great service here. They will make the whole process on whatever you are getting done as fast as possible, but of course, with great care. They know what they are doing. My car needed a lot of work done and they did it faster than I thought. My car is running great. Alen is really helpful, talented, and honest, so everybody benefits.

Quote reviewiconCar & Truck Care, near Tarzana, CA

I came in here because of the reviews. I found out they're true to life - Alen gives you a fair estimate and sticks to his number. He'll even give you a less costly option when it's available. I'll be back that's for sure!

Quote reviewiconCar & Truck Care, near Tarzana, CA

I'm happy with my experience here. I took my 98 camry in, which was leaking transmission fluid as well as an oil leak. They repaired both for a reasonable price and had my car ready by the time they said it would be. They offered to have me bring it back in in two weeks to confirm that everything is good

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