after car is turned off, there is a humming sound that contiues for 15 secs.
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1999 Infiniti G20 Question: humming sound
Answer #1patrick mannion from Greg Solow's Engine Room, April 09, 2009, 22:19Master
Is this humming sound from the engine compartment? If so it is probably the electric cooling fan on the radiator and this would be normal. If inside the car again I wonder if it could be related to the heating and air conditioning fan that is switching off but you hear it rotate while is switching off.
Answer #2Visitor, March 01, 2010, 15:34
There is a humming sound that continues constantly after it is shut off
Answer #3Visitor, July 12, 2010, 11:35
Fuel cap - pressure equalization. Normal.