It happened to mine and the fan broke... I epoxied mine and it stayed till a storm took it.
The shaft moving? Worn motor in some way. I wouldn't worry till it quits...once you get the shake out.
Hold up. You mean the fan moves on the shaft? If so the clamp must have came off/broke. If so... I am sure a new fan is in order. I think they are like $15.
2017 Puma 297RLSS
2005 Ram 2500 4X4 diesel SMOKER!!
I love puns, irony and tasteless jokes...
born in Texas.... live in Arkansas