Replace serpentine belt on a jeep grand cher w/4.7 liter engine

Why not try Google for such questions? Here is one I found in less than a minute:
Jeep Grand Cherokee WJ Serpentine belts

Below is the master help link provided to go through belt routing diagram:---Timing belt, drive belt, serpentine belt, accessory belt, fan belt, engine belt routing diagrams for all types of car models?
Click the link below: ----

http://carbeltrouting.blogspot.in/2012/02/timing-beltdrive-beltserpentine.html
----------This will help. Thanks.

try this

1998 Jeep Grand Cherokee 5.2 Liter And 5.9 Liter Serpentine Belt Routing try this link http://autorepair.about.com/library/pictures/illustrations/bl750a-lib.htm

here is an image of the engine in question (on the right) it is not a diagram but shows the track of the serpentine belt

http://static.howstuffworks.com/gif/1999-2000-2001-2002-2003-2004-ford-mustang-5.jpg

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.

here you go

how to remove and re-install serpentine belt?

2.0L Engines
See Figures 11, 12 and 13
The accessory drive belt for 2.0L engines has no provision for manual belt adjustment, since these engines use an automatic belt tensioner. Drive belt slack is taken up by the automatic tensioner.
Movement of the automatic tensioner assembly during engine operation is not a sign of a malfunctioning tensioner. This movement is the tensioner self-adjusting and is required to maintain constant belt tension.
The belt tensioner has a belt length indicator. If the indicator marks are not between the MIN and MAX marks, the belt must be replaced.
Fig. 11: Drive belt routing-2.0L SOHC engine with A/C Fig. 12: Drive belt routing-2.0L SOHC engine without A/C Fig. 13: Drive belt routing-2.0L DOHC engine

What engine do you have? The 3.3 and 3.8 engines have a single serpentine belt, and a belt tensioner, so no adjustment is needed. Did you replace the tensioner, and want to know how much to torque it? countrycurt0