zj transmission problem , need help bad !!!!!
 

hello , I have a 97 zj grand cherokee with 5.2l engin .
this week i went back in the trails , was in 4low .and decided to do a smal drag race of like 100 feet on flat sand...,
herd a bang in the transmission . stoped ... didnt find any difrence , so works fine. 5 min later . less power and a zzzzzzzzz sound in the trany that follows the gaz pedal . and now dose it on every gear , including revers... so we decided to call it a night .. next day ... truck works fine ... 15 min later , cant go any faster then 40klm and the zzzzzz sound came back ... so I turn to the side , put it into park , stop the engin , wait 2 min , and start again ... and the truck works fine for around 15 min then all starts again .
I checked my oils and everything is fine ... so now Im hear looking for help ... where should I look ... can anyone help me ?

Re: zj transmission problem , need help bad !!!!!
 

What transfer case do you have? Most T/C's can't take more that about 35km/h in 4 low so you may have broken some teeth on the chain gear. The only quick way to tell if you broke something in the tranny is to drop the pan and see if you have any pieces in there.

Re: zj transmission problem , need help bad !!!!!
 

thenk you for your reply , um transfer case ... only has 4 high .. and 4 low ... ok so I will trop the trany oil pan and see if there is anything in there ...
if there is nothing ... where should I look next ? do you think ?

Re: zj transmission problem , need help bad !!!!!
 

You have the NV249 T/C.
Pull the drain plug on the T/C and look inside and see if you can spot anything laying on the bottom, hopefully not in either case. Small filings of metal are normal in either one but anything larger is a repair.

Re: zj transmission problem , need help bad !!!!!
 

and can it maby just be sensers ... or cylenoids? cause the truck really works great when I start it ... its only a few minutes later that the zzzz sound starts and the shifting problems start ,...

Re: zj transmission problem , need help bad !!!!!
 

There are 2 solienoids in the transmission, it may be the problem but I've never heard of them making that kind of a noise before. Have you checked to see if there are any codes showing?

Re: zj transmission problem , need help bad !!!!!
 

no I didnt have a chance to get it checked yet ... do you think reajusting the bands and changing oil and filter might help ?for this problem ?

Re: zj transmission problem , need help bad !!!!!
 

Turn your key from off to on, off/ on, off/ on, leave it in the on position and in a couple seconds there should be some numbers popping up in the odometer window. If it does post up the numbers and we'll see what they are.

Re: zj transmission problem , need help bad !!!!!
 

thats cool ... what will the numbers mean ? problem codes?

Re: zj transmission problem , need help bad !!!!!
 

Yes, those will be problem codes the computer has logged.

Re: zj transmission problem , need help bad !!!!!
 

sweet ill check it out for shur !!! never heard of that trick...

Re: zj transmission problem , need help bad !!!!!
 

great , ya i tried it ... thats cool .. but anyways .. just got my answer from trany shop ... trany is almost dead .. better off putting in a new one ... so I decided to switch for a 5.9 ... new project starting lol...
thenk you all for ur advises , I apresiate it very much ..

Re: zj transmission problem , need help bad !!!!!
 

No problem, post up some picks of the new project as you go.

Re: zj transmission problem , need help bad !!!!!
 

yeah for shur ... ill put in my lift installation soon ... ill make a photo galary in my profile ... and engin & trany , bumpers,rock sliders ....hood bars ... lights ... 12000lbs winch ,,, ill try to post them hear ... I didnt quit figuer out how yet .. lol... im new at this whole forum thing ...
project has just begun ... so far suspention is done ... and 5.9 swap is pending in a week or two... the rest will follow .. :) cant wait .