Expansion Valve


Expansion Valve

An expansion valve controls the amount of refrigerant that enters the air conditioning evaporator. Its failure may lead to improper A/C system operation and keep it from cooling the cabin of your vehicle.


Expansion valve troubleshooting and replacement

  • A bad expansion valve is not repairable and must be replaced.
  • An expansion valve can be found only in vehicles equipped with a receiver-drier.