Post by
NISTECH »
https://forums.nicoclub.com/nistech-u7581.html
Sat Mar 19, 2005 4:08 am
drop the motor down and see if something is in it. usually when they create a vibration like that something is in the cage. be warned I have pulled dead critters out of them before and yes most of them were in more then one peice since the impellers are sharp.
To drop it down look up under the glove box, you should see the blower motor,around it you will see 3 screws holding it in to the blower housing, remove the screws,unplug it and drop it down.