Fan Flutter?

[capt512]

Good Morning Everyone,

Have a annoying problem that I have recently noticed in my 03. When I turn the AC on (or maybe fan in general...I haven't been using anything but AC so far) there is a fluttering noise in the vents. The fan blows hard, changes speed as it should, etc but makes a noise almost like a leaf or piece of plastic lightly fluttering back and forth against something. Doesn't seem to be making any performance problems, but annoys me like no other. I tried to take an audio clip of it ... but don't know how to post an MP3 clip...as photobucket won't upload MP3...

[fastblackmerc]

There might be some debris that made it's way into the intake vents.

[hwy73]

There might be some debris that made it's way into the intake vents.

I've seen this happen more than once. The air intake for reirculated air ("Mac-A/C" position) is located behind the glove box under the dash. When closed, the glovebox (which has no top) is in close proximity to this air intake. A piece of paper, tissue, a small plastic wrapper or something may have fallen from the back of the glovebox during closing and is stuck to the air intake and is 'flapping in the breeze'. Or, a piece of the foam on the face of the recirculation door may be starting to peel.