Hey, I am new to this forum,
got a 2001 QX4 in great shape. The only problem is that the 2 front windows make an unusual rattle when they are partially down. I have taken it to the dealer once, and they didn't hear it, but they replaced a metal bracing bracket inside the door panel...didn't make a difference...
so i opened up the door panels myself, and just checked to make sure everything was tight, it looked good.

took it again, and they replaced the rubber insulation around the window frame...still did nothing

It sounds like something metal is tapping against the window inside the door frame, it's not like a "normal" window rattle.

Does anyone else have this problem??!!

thanks for any input

also if anyone has bought the metal pet guard divider, i figured out a way to seriously quiet that down!