Well First Off my I am a dumbass and this was all my fault. Let me get that out there b4 any1 else does. So about a month ago i was tryin to install angeny light weight pulley. While I was holding pressure down to loosen the belts, the belt tensioner bolt thing broke!!!!! Just so happened to get the pulley off at same time thank god! But anyway not only that we managed to get the pulley on and the belt on miracolously dont even know how but anyway about the first 20-50 miles the belt smelled like it was burning. SO then that smell went away and it looks like the belt is perfectly in place. So now about 200-500 miles later im starting to hear a loud humming sound coming from my motor, and it sound like its coming from the pulley area. The mods i have are injen intake, alphawerks header, tanabe medallion touring exhaust, and the pulley. Is that noise common with any of those aftermarket parts or is something wrong with the pulleys?

 

try installing your old pulley back in and reverting the install back to stock and see if the problem goes away.

 

Does your belt have any abnormal wear?

 

The problem is my belt tensioner bolt broke off so i think it will be physically impossible to take that pulley off now.

 

oops i forgot, and no the belt has no abnormal wear at all.

 

why dont you change the tensioner so you can put a new belt on it and see what happens.

 

yeah i havent checked the prices on those and i dont see much people parting out scion motors.. plus im in germany so even harder to get parts so gonna have to go through the dealership! yeah im pretty much screwed.. ill keep a look out though for anyone parting out a motor. i wonder how difficult it would be to change that