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97 Grand Cherokee for my Daughter


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#31 olcowhand OFFLINE  

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Posted November 26, 2011 - 08:25 PM

i would change the tanny filter and fill with new fluid . a buddy had one and it got to where it didnt want to shift and then when it did it felt funny. we pulled the pan off changed the filter (it was bad ) and put it back together and he is still driving it 4 years later with no problems .


PO changed oil & filter just before he quit driving it.

#32 Gary400 OFFLINE  

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Posted November 26, 2011 - 08:32 PM

didnt read that part i guess, ill keep thinkin and ill try to get a hold of a friend of mine hid dad owns little jess jeep eagle . when i had my cj7 we use to go 4 wheelin at the farm alot he may be able to help .

#33 DougT OFFLINE  

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Posted November 26, 2011 - 08:32 PM

Daniel, you really need someone with a scan tool that can go into the trans contoller and look at the data stream. A code reader won't cut it. It could be something like the speed sensor in the extension housing. There is a gov pressure solenoid and a gov press sensor in the trans. I've even seen the downstream O2 sensors mess with the governnor pressure circuit in the trans. You mentioned you unhooked the kickdown cable but that also controls upshifts with throttle pressure against gov pressure. That cable should move freely and have a spring down below pulling it back toward the idle position. At wide open throttle, that cable should be at the end of its stroke.

#34 olcowhand OFFLINE  

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Posted November 26, 2011 - 08:36 PM

I'm likely taking it to a trans shop before it's all over. I'm just shooting in the dark so to speak right now.

#35 Trav1s OFFLINE  

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Posted November 26, 2011 - 08:50 PM

Do you know what ATF was put in it? Anything other than ATF+3/4 will cause the late model Mopar transmissions do BAD things.

#36 Gary400 OFFLINE  

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Posted November 26, 2011 - 08:56 PM

my last trip to a tranny shop cost me 2800 bucks

#37 CASENUT OFFLINE  

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Posted December 02, 2011 - 12:40 AM

With 34 years at the Jeep Factory here in Toledo ( Ya I know it (grand cherokee) was built at Jefferson) I appreciate many of the comments in this thread. The weak link as we all know is the tranny. FWIW I would find a good one from a bone yard and drop it in there. With only $400 invested that tranny can be had for ~500 from a bone yard and you're in business...then you can decide, either scrap it or take it to a rebuilder and let them have a go at it, probably set ya back $1k but that car well cared for will outlast most...and with $400 in it hard to go wrong...GL

#38 kb0nly OFFLINE  

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Posted December 02, 2011 - 10:50 AM

I am on a few jeep forums as a jeep owner myself. To me this sounds like a bad speed sensor, i have seen that reported a few times on the forums.

I have a KJ, aka a Liberty.
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#39 Trav1s OFFLINE  

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Posted December 04, 2011 - 08:52 AM

How goes this?

#40 Grumpy OFFLINE  

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Posted December 04, 2011 - 10:50 AM

Posted Image
Heres a pic of my friends Jeep. It,s a bad one.

#41 olcowhand OFFLINE  

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Posted December 04, 2011 - 10:52 AM

How goes this?


Been covered up farming lately, so no work at all on the Jeep. I did drive it a mile up the road & back....same stuff, with an added bonus now. If you get the throttle just right, just enough to get her rolling, it's shifting in & out of 1st every 1 or 2 seconds. Can't tell it it's going into neutral or attempting 2nd, but I think it's 2nd it trying to slip into.




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