My wife has an 01 Stratus that has been having some issues with what I believe is the heater fan in the dash. When we turn the fan on either 1 or 2, you can kind of hear the noise, like a growling noise. At 3 or 4, it causes the whole dash to vibrate and almost makes me think the thing will vibrateout of the dash. This also does it on the A/C setting, so its not just the heater. Is this something that is either out of balance, or could somethign be going bad? Any ideas would be appreciated, and any good ideas for tear down details for this area?
Thank you in advance.

 

Either the blower was bent or the bearings are going bad

 

i have seen this on another type of ride. something fell down into the fan and broke off a vane. after removing the fan we were able to "balance" the fan with a pair of wire cutters. we clipped off the rest of the vane and then did the same to the other side of the fan to balence it. we did a test run with a 9V batt (it's a dc motor) to make sure it wasn't the bearing before reinstalling.

the fan was wobbling and rubbing against the housing making ALOT of noise. you could just have some leaves or something down by the fan, either way, big job getting the fan out. happy motoring.