It doesn't need to be piano wire tight. It needs some play- but not so much that you can easily take it off without loosening the tensioner. The crank pulley puts the tension on it. Too tight will lead to a blown water pump bearing.
As Bill points out, the shock absorber thingee can wear out. You'll hear it jumping around if that's the case, or perhaps, hear the power steering pump squeal when going lock to lock if it is.
Last edited by tim; 08-13-2006 at 08:48 PM.
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