Blower Motor Noise Vibration On Low Speed

[auraxr]

Anyone else having slight blower motor noise only on low speed. This is a 2008 Sedan. Sounds like a vibration, rattle but again only on low speed, goes away at higher speeds. Blower speed seems like normal. 22K on car. Any suggestions or experiences related to this.

[thehunterooo]

I would not worry about it, but if it does not go away in a few days/week then I would take it to the dealer and let them look at it (if it is under warranty that is). I have a weird noises time from time and they go away after a little while. Something may have gotten up in there or something.

[Aveo5_boy]

2008 Aveo5 and have the same issue....rattles only on the lowest speed.

[petrified.rabbit]

this seems like it could be a debris, or a balance issue. IF it only happens on low speed, it could be either one.

Does it happen if you put it to high first and then down to low?

[auraxr]

This vibration occurs irregardless of whether going from high to low or low to high. Somehere on here and I can't find it again now someone mentioned that there was a revised/superceded blower motor number from GM? Can anyone remember?

[charlieb]

thought i might chime in,my 05 has been doing the same thing only on 2 lowest settings.may be a common problem.this dosnt help you but i did notice its easy access to drop motor from under the glove box to check it out.i think its a small rub/balancing issue and thats why it goes away at faster speeds

[phurst]

I had the same problem. It went away when a new cabin air filter was installed.

[auraxr]

I am planning on replacing the cabin filter when I am in there. Just want this to be a one time deal as I hate to throw away money on another blower motor if it is not going to cure annoyance. Anyone remember a superceded updated number for me to order from GM or is that going to be automatic? Thanks everyone for input.

[petrified.rabbit]

if it has been superceded, its going to be automatic.

[petrified.rabbit]

in this case though, since a member had a similar issue and replacing the filter fixed it, i would try that before buying the whole motor. If that fixes the issue your not really losing much accept the aded time i removing the glove box a second time.

The superceded motor though (i havent confirmed for myself) but if it was superceded, it might be a brush issue or something inside the motor.