My car was squealing loud so someone told me i can mist water on my pulleys one at a time to find the bad one. I thought it was the tensioner pulley and when i spayed it, it quieted it for a few seconds. I replaced it and it still squealed, so i figured it was the tensioner cause when i pushed on it real hard it quieted. So i replaced it and it STILL squeals. So im assuming i have another bad pulley. I guess when its light ill spray more pulleys and try to find another bad one. Does anyone else spray water to find bad pulleys?? Ive read pulley squealing is pretty common on the ls1, so i guess its not a big problem, just makes my car sound like a pos....

 

I would check the other tensioner on the AC belt. They are known to fail as well.

 

It doesnt matter which pulley i spray. If i spray any pulley it makes the squeal go away,even the tensioner i just replaced, and if i just spray the belt. I cant figure out where this damn squealing is coming from.