How can you tell if your belt tensioner is bad? I have been having trouble with my belt size and shredded a belt. I figured out i had too big of a belt on there because i had the wrong size alt pulley. I havent swapped the belt or alt pulley back to the size its supposed to be yet. But i did notice if i grab the belt and pull on it, it actually gives a few inches. I thought people with vortech setups said that the belt is on there super tight to where you cant even move it. Does this mean i have a bad tensioner if i can grab it and get it to strech like that? You kind of hear/feel something sliding when the belt does that too.