I noiced about 2 days ago that when I turn on the ac or heater on my car the blower motor in front of the passenger's seat starts to buzz and vibrate for like one minute and then it stops, I took it out yesterday and I didn't find anything stuck or nothing only that it had some dust, I revised the duct where it came from and found nothing unusual, what can be happening to it? Is it time to change it?
heater fan, the relay , the fuse or the switch on the dash !
The bearings are worn out. Replace it.
Give it a little time, it could be something (a piece of paper was in mine) was stuck and you cured it. You might put a drop of oil on the motor shaft. If the vibration and noise persist, consider replacing it.
blower motor is going bad
