Serpentine belt diagram , Belt has came loose and I need to know where idler pully is so Ican fix it. At work right now. 1994 Saturn SLI

COULD BE A BAD BEARING IN THE IDLER PULLY OR THE TENSIONER ON THE TIMING BELT OR THE SERPENTINE BELT. IF ITS A SQUEEL IT MAY BE SOME COOLANT GOT ON THE SERPENTINE BELT. TRY TO WASH THE BELT WITH WATER AND LET DRY COMPLETELY. IF NOISE REMAINS RETURN TO THE SHOP THAT DID THE WORK.

Your tension spring is shot. purchase a new idler pulley and tension arm bracket. that should fix it.

http://serpentine-belt-diagram.blogspot.com/2008/10/it-is-preview-of-serpentine-belt.html
Good luck and have fun :)

Do not drive the vehicle any more or it will soon die when the battery is dead. The serpentine belt broke and the alternator is not working leaving the vehicle running off the battery and it is not being charged.

Really don't need a diagram. Loosen the slide bolts on the power steering pump. loosen or tighten the pump by turning the jack screw (long transverse bolt) under the pump. Once the belt is tightened up, lock down the slide bolts and you are finished.

under the hood should be a dieagram on proper install follow the pictures you will need a 3/8th or 1/2 in drive ratchet for the idler pully make shore to seat the belt in all the pullys good luck cj

Hello there:
Normally a serpentine belt will stay on tight untill it begins to strech out after it streches out to far the tention idler pulley cannot keep the belt tension tight any longer thus resulting in a belt either coming off or other things happening So what i would do is to first remove the serpentine belt and ensure that the tention idler pulley is working good make sure it does not just move freely than get a new belt and install now you should be ok
Hope this is very helpful for you
Best regards Michael

I would bet it is the belt tensioner or belt idler, but can not be sure as I can not look it. At one time there were belt routing diagrams on a sticker under the hood, but I do not know if your Explorer was one of those. If I find a link to the belt routing I will post it for you.

Bob

If you mean a serpentine belt under $35.00 here is the serpentine belt diagram for a ford Focus

The A/C pully is supposed to spin freely until the AC is activated to run.. The cranshaft pully does not. Replace the tensioner pully. The belt has to fit in between the grooves on the pullys.