Nissan Altima: weird "chirping" sound from 2002 Altima...

Hello,

My father is the owner of 2002 Altima and he's been complaining about a
noise he's been hearing from somewhere under the hood of the car. It seems
to occur most often when the car comes to a stop and he refers to it as a
chirping sound, but to me it sounds like some kind of a small electric motor
is "reving" up (it only lasts a couple of seconds). He's had it to the
dealership and at first they didn't know what it was but now are telling him
it is normal and has something to do with "air intake valve" (or something
like that). Does anyone know what I'm talking about? (my apologies if
this is rather vague, but I'm really not much of a "car person" to begin
with).


TIA,


Greg

Yes i have the same problem with my 02 nissan and it has something to do
with the hood on the car. If you start the car and have someone press on
the side of the hood you will notice it stopping. Stupid hah??? Its true
but nothing to worry about. Has he had any problems with the heat?