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The pulley you describe sounds like the idle pulley and it should be straight and if you remove the belt and turn the pulley it should roll free and not bind. In short I would change the pulley as it has a bad bearing in it.
Is it possible that the belt tensioner is the cause for the squeal or possibly the belt itself needs to be replaced. Although not impossible, the lower pulley usually is not the cause for belt squeal, unless it is damaged.
if it is a squeak it is the belt if it is a growl it could be a pulley going bad you can better determine if it is a belt or pulley buy taking the belt off and spining the pulleys by hand to see if one has any play or noise if not relpace belt
1997
JEEP GRAND CHEROKEE - V8 5.2L 318ci GAS FI N Y Usually the label diagram is underhood, over radiator/grille...
If you need more details about youe Jeep ZJ Grand Cherokee, can check this documents about Repair Manual: Grand Cherokee 1993-1998 FSM
To get out, it's easy and doesn't require a prybar.
Get a 14mm or 9/16" socket and a long handled ratchet or breaker bar.
Get the belt around all the pulleys except the A/C compressor or Alternator.
The tensioner pulley is near the Alternator toward the
center of the engine. It's on a spring loaded arm. Get your socket on
the center nut of this pulley.
Slowly pull the ratchet toward the center of the
engine. The pulley will pivot on the arm allowing you to get the belt
on the final pulley.
noise mostly. If it gets bad enough the idler pulley can seize. when that happens it will smoke the belt off into shreds and smoke and glory. It will be very exciting for everyone but you. If you can pull the belt off you can spin those pulleys and see if any of them sound rough. If they wobble at all or make any noise you can hear with no trouble then they are bad.
pull belt off and turn pulleys until u find bad one. first start jeep with belt off and make sure its not in motor. check power steering fluid. dont leave motor running for 2 long with belt off
If you have the same pulley arrangement that most 4.0 engines have that pulley is an idler not a tensioner. Your power steering pump has a pivot bolt, and a slide under the pump. You adjust belt tension using the pump.
1.Your engine has an internal timing chain, not a belt. Therefore I'm going to assume that you mean the serpentine drive belt. Common causes for belt to fail is either a mis-aligned or damaged pulley, improper belt tension, or bad tensioner spring (if equipped with spring loaded tensioner) You mentioned a loose pulley but didn't say which one! That's what I'd look at first! Also, make sure that all pulleys have no "wobble" indicating a bad pulley bearing Most common: water pump or idler pulley.
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