A few weeks ago the dryer started to squeak when it started up then it went away after a couple of minutes. Then about a week ago I started the dryer and it squeaked, went away and I went upstairs. About 5 minutes later I smelled smoke and went to the laundry room. The room was filled with smoke and the dryer was making a squeaking, grinding type noise. I of course turned it off. Later my husband and I took the dryer apart and he checked the dryer rollers (we replaced all 4 last year). There was one that seemed to not turn as well so we order a roller and he replaced it. When he turned on the dryer it made a loud humming noise. We did some research online and decided it could be the idler pulley. We ordered that part (just the pulley, not the full kit as I was told it wasn't needed) and replaced that today. The dryer now makes more of a quiet humming noise and the drum still does not turn. Could it be the motor? Is it time to give up on fixing it?

Thanks for your earlier reply. We did end up purchasing a motor (cheaper than buying another dryer!) and we installed it fine. The drum is turning normally, clothes are drying..yay! But there is a clicking, ticking noise when the dryer is on. Do you know what it could be? We have replaced the idler pulley, wheels, and motor within the past couple of weeks. Thanks in advance for your help.