OregonXJ91

i have a 91 jeep cherokee and it has a knock. it knocks when i am in idle but goes away when i take it out of park. But when i put it in reverse it tries to die and it makes a gnarly knocking sound when it does it....Please Help!!

cookjz92xj

I'm gonna comment but I'm probably wrong so wait for some one else's opinion but I know the bolts that connect the torque converter to the fly wheel get loose over time and cause a bad knocking sound. You have to take off the inspection cover and check the bolts to see if they're tight.

Squelchtone

Please make your topic title a little more useful than just "HELP!!!!" It's always a good thing to give the readers a preview of what they're about to click. As a help desk guy and admin on another forum, subject lines with 1 word or a bunch of ???? or !!!!! and CAPS LOCK to try to get attention are our least favorite..

/rant
Squelchtone

PONCHO130

I had the same problem and yes it was the flywheel.

odgreen

What part of oregon you in? If it dies when in reverse your bellhousing bolts have loosened up. I just had to replace the flex plate in my sisters jeep because of this same issue

cruiser54

Absolutely correct.

Here are 2 things that are quite helpful.


Straightshooterjeeps cracked flexplate diagnosis

I removed 3 of the 4 bolts.

Then loosened the last bolt about half way.... I left this one in to maintain connection between the tq and the plate. Just so I wouln't have to fiddle with putting bolts back in too much.

Now the flexplate is pretty much seperate from the torque converter.

Got my flashlight pointed up in there

Grabbed a big flathead screwdriver and started prying on the flexplate

Don't see anything yet

Turn the flexplate a half rotation

Pry again

and there it is! A big fat crack up near the center of the plate.

When the flexplate is loose from the torque converter you can get it to "flex" real good and you just might be able to spot your crack.

Just to be sure you do have one before dissasembly.

It was very obvious at this point, but before pulling those bolts I looked and looked and could never see a crack.

Hope this helps save someone a little time.

https://www.cherokeeforum.com/f51/ho...ocking-125547/

cruiser54

Funny you should mention that. I am always tempted to skip over a thread with a title like that....................

Rogue4x4

I avoided clicking on this one, because of that very fact, but came back to it today out of boredom. Definitely use better descriptions, you will get more help, and a lot faster.

OregonXJ91

Thanks. and i live in eugene. is there any writups out there on replacing the flywheel?