I'm having a grinding noise and after pulling off the serpentine belt I realize that the tensioner pulley is the culprit.
I've seen a video where the guy simply removes the pulley itself without having to remove the motor mount and jack up the motor, etc., to get at the bolt (video here, nice how-to here). But, my pulley is like the first pic below and doesn't have a nut to remove it. There's no other way to get this off is there?
I'm probably going to have to the jack-the-engine up method and buy a 17mm wrench, aren't I? Also, why does everyone say change the serpentine belt while I'm at it. Something to do with the tension strut's pressure? My belt is fine and a 10 minute job when the time comes so I don't understand this recommendation.
Unfortunately, my pulled looks like the first picture below, as opposed to the second:
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