Kball9217

Alright guys I'm gonna try and do my best to explain my issue so bare with me please ! I have a 93 jeep grand Cherokee with the 5.2lv8 it is having transmission issues like going into reverse so park =park reverse= neutral or park so it seems and neutral = drive when i first got it tranny was making a whining sound when in gear but trans operated as it should so I did a trans flush and new filter whining noise went away and drive like a dream for maybe a month went out one morning fired it up went to reverse and nothing could feel it engage but wouldn't move so I checked all other gears and neutral was drive so I thought maybe shift linkage so I unhooked shift linkage and manually shifted into reverse from underneath the jeep after a couple times of moving through the gears ranges I got it to move in reverse but had a sluggish delay so I checked trans fluid level and it had proper fluid levels drive great for about another month and then same issue went through same procedure but couldn't get it to mive in reverse again a buddy told me could be transfer case so swapped transfer case and same issue pulled pan and there are no metal chunks in pan I am at a lost with this I do have a new used transmission ready to be seapped in but if I can save this trans I would like to before jumping right to transmission swap and help is greatly appreciated

wingless

Welcome to the forum.

Please be aware that the correct OEM Factory Service Manual (FSM) is a REQUIRED TOOL for anyone turning their own wrenches on this vehicle. The FSM is very well written and is complete.

WRT to the issue, many of the symptoms are indicative of an incorrectly adjusted shift linkage.

After I rebuilt my 46RH transmission I needed to make a slight adjustment to the linkage, then all has been great.

Here are the shift linkage adjustment parts.

Kball9217

If it is the linkage shouldn't I be able to remove the linkage from the transmission and shift it by hand from underneath the jeep and it go into gear correct me if I'm wrong
Also don't know if it makes a difference but when in park I used to be able to hit rev limiter with no issues ever sense this issue has accused it won't rev past 3500 rpms when in park but when in gear besides reverse it will red line no issue

wingless

The OP symptoms indicate the shift cable is improperly adjusted. That is setting center console shift lever at Neutral and transmission is in Drive.

Start w/ the shift cable properly adjusted, so the transmission selector position matches the center console shift lever position. It is enough of a butt pain to diagnose the transmission w/o ensuring this is set correctly first.

If transmission problems remain w/ the shift cable properly adjusted, then the FSM has a series of tests and measurements that point to potential problems.

My '94 ZJ was special ordered by me oh so long ago and I have yet to conclude that I should rev my engine until it hits the rev limiter...

Kball9217

My jeep is strictly a toy that's why it's hit rev limiter woouldnt do that if it was a daily driver but I will adjust the shift linkage today after I get off work and see if that fixes it are there any forums related to adjusting it properly

wingless

The FSM details adjusting both transmission cables, providing images showing the adjustment.

Kball9217

Adjusted shift linkage it was definitely off a little bit got it adjusted properly but still have the same issues accruing

wingless

Thanks.

The FSM details test and measurements that point to the problem sources. It is a complete, detailed and essential resource tool.

Kball9217

Ok I have looked at the fsm and still can't find anything else can you direct me to any forums relating this issues if you can't help??

wingless

What issue(s) exists?

What tests / measurements have been performed?

wingless

​​​​​​​According to your recent topic on another site the symptoms are unchanged.

Is that correct? What are the current symptoms?

If correct, then the shift linkage is still adjusted incorrectly.

Kball9217

Still have the same issues account it will shift through all gears when driving with no issues the only thing that has changed is it will rev up to 4000 rpms in park yesterday I flushed the trans fluid again and changed filter again because it looked clogged again put fresh fluid in and still same issues accur

wingless

It is REALLY difficult to understand what is being presented as the problem.

My GUESS is the OP is using a bespoke test that is to place the vehicle in Park, then floor the throttle to verify that the engine will hit the rev limiter, but instead the engine only reaches 4,000 rpm.

My SPECULATION is that the gear shift cable is still incorrectly adjusted.

The latest information of again dirty fluid / clogged filter is indicative of a major transmission failure. That fluid contamination has likely originated from waaay excessive wear on the friction discs and bands, very likely from operating at excessive RPM w/ the transmission partly in gear.

It is very possible / likely that even if the cables are ever properly adjusted that the permanent damage caused by this redline "testing" will prevent normal operation.

Kball9217

So in other words I should just swap the transmission out for the spare tranny I already have that is a known good transmission

Or is it possible that the low reverse band needs to be adjusted

Ive also read something about the snap ring for the direct drive clutch pack snaps often in these trans. Sometimes peices of the snap ring will be found in the bottom on the pan. Or they'll get stuck on top of the valve body wich will also cause my no reverse neutral is drive

wingless

Evidence is that the OP has caused permanent damage to the transmission from the combination of failure to adjust the shift cable combined w/ a unique WOT in Park test.

It is possible that the existing transmission is still functional. That has not been determined yet.

Swapping the transmission is a big job.

Given that the OP has been incapable of adjusting the shift cable so far then it is unlikely a transmission swap will have a positive outcome.

Flip a coin and proceed forward w/ your choice.