Since this is very unspecific to location, I am going to assume a hole in a air hose somewhere. Or maybe you timing belt is bad.
behind the battery under the hood
Rock got stuck under the hood in the latch release.
Firehouse Tales - 2005 Hot Under the Hood was released on: USA: 2005
Under the hood.Under the hood.
should be were the fuses are, under the engine hood
One, it is under the hood.One, it is under the hood.
If the whistling noise is coming from under the hood its your belt, that's what's wrong with my Sequoia. If its not coming from under the hood its probably a crack in the seem of your window.
Really need to know if the hood from a 2003 will fit my 2004
relay box (fuse box under hood)
well obviously a little bird hit your wind shield and slid down under your hood and got stuck between the engine and oil tank... this exact same thing happened to me
The most common cause of the whistling in a 2003 Impala is a vacuum leak. Any of the lines under the hood could be causing the noise.
You could try a new alternator and check fan belt tension.