Have had a high pitched squeal lately, been reading posts. I took off the belt and checked to make sure nothing was loose (nothing was) and there were no bearings going bad (side to side wobble). Put the belt back on and the squeal went away. Although I am happy there is no more squeal, it kinda worries me what was wrong before.... anyone else dealt with this??
Dunno how the belt got tighter, as the tensioner spring is the same, the squeal isn't the belt (different sound), or rather wasn't. The sound was like a water pump going out, or maybe power steering....I guess I'll just wait till it breaks...it was embarrasing, (especially with the top down) cruising in my cool JEEP that was torturing pigs!
I'll side with the belt being a little loose, maybe the tensioner was stuck in one position and when you took the belt off it broke it free and you now have the correct tension. I would however go ahead and put a new belt on as it may be glazed over from slipping and also try to lube up the tensioner pivot.
Oh thats right the TJs got auto tensioners on them. Pardon me.. i've never changed a belt on a jeep.. It may have jumped a notch so the belt wasnt sitting on there good.. <I've had that happen on another car. If you got time check between the groves see if one is oversized or worn out more than the rest.
I also agree that it is a loose belt... Because when my friend had also same problem, he found out that his Volkswagen belts has worn out causing it to make the squealing nose and decided to replace it with a new one. Then it was fix immediately...
Even though the squeal went away, I went ahead and changed the belt, so I guess that is what it was. Looking closely, there are tiny hairline cracks on the inside of the belt, so I don't feel bad at all about changing it! Thanks to all