I have recently discovered a rather noticable "rattle" sound emmitting from the passenger side of my 98 E0 SVT. It seems that the sound is coming from the upper most part of the engine block (toward the rear of car) which is, right where the idler pulley resides.
I want to know how to correctly diagnose this problem....
If it is the idler pulley or tensioner how can I tell?
I'm getting ready to change the serpentine belt, water pump, plugs & wires, MTX fluid etc..... big winter projects. While i have the serpentine off I would like to fix this noise.... before it becomes, well.... more then a noise!!
THX
Jason
