I replaced the top idler pulley as it had some play in it. Still has the noise. When I spray lubricant on the smooth side of the belt while it is running, the noise goes away for 20 seconds or so, then returns. I'm guessing this rules out bearings and the alternator, right? I don't know what to try next. The alignment seems good. Thought about replacing the belt and the tensioner, but wanted to get some advice first.
Friday, January 13th, 2012 AT 2:13 PM