1991 cherokee serpentinecbelt adjuster problems
i can not get the serpentine belt loose as far as i no it is by the power steering pump under it what should i do it is hard to get at the nut and iv turned it both ways and doesnt loosin the belt
Senior Member
Joined: Jun 2009
Posts: 553
Likes: 1
From: West Texas
Year: 1991
Model: Cherokee
Engine: 4.0 L

AHA! a question I can finally answer with semblance of truth!
Ok, you hav a 91 ya? 4.0l ya? A/C option ya?
here is what you have to do..........
power steering pump... there are TWO bolts you must loosen.
the one on the very bottom,,,,can't see it from leaning over the engine. you have to feel it.
think its a 13mm or 15mm. Must have wrench on BOTH sides.
loosen it fully. Don't take it off.
Second, the adjuster bolt, it does not turn the way you think. At least to loosen. spray with wd-40 on the bolt assy directly (the adjuster bolt)
wait a while, think its a 10mm or 11mm........then using a ratchet keep turning until you get at least 3/4 to 1 inch play in the belt tension, then u should be able to use a large long ratchet/breakerbar/pipe whatever, and slowly wedge it (the breakerbar, etc) up against the solid part of the power steering pump housing and slowly squeeze it towards the engine block. once you have the adjuster loose as it will go this should be no problem. then you will have enough play to remove/re-install belt.
I have done this many many times. It does work.
cheers!
cpnwrench
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
4 bolts, two on bracket on back of pump in slots for slideing adjuster by air box and lock nut under pump,removing aux coolung fans gets more room in front
Seasoned Member
Joined: Aug 2011
Posts: 344
Likes: 1
From: California
Year: 1989
Model: Cherokee
Engine: 4.0 i6
Seasoned Member
Joined: Apr 2012
Posts: 253
Likes: 2
From: Abu Dhabi, UAE
Year: 1991
Model: Cherokee (XJ)
Engine: 4.0 6cyl.
correct, I just did this on my 91 XJ, to adjuster bolt and nut on the bottom front, and the 2 on the back, mine slides up and down well, but the problem is not, the new belt still seems to be about 1 inch short, I can't get it to go over the power steering pump....any ideas ?
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