wont go into gear??
Thread Starter
Newbie
Joined: Mar 2010
Posts: 29
Likes: 0
From: Aspen Colorado
Year: 1993
Model: Cherokee
Engine: 4.0L I-6 190 HP
it is going in gear when engine is off and also when i put in in reverse then back up and try to go into 1st it wont let me outta reverse unless i turn it off?
Member
Joined: Mar 2010
Posts: 103
Likes: 1
From: Phoenix, AZ
Year: 96
Model: Cherokee
Engine: 2.5l I-4
Try a drain/refill of the tranny fluid, use SAE 75W-90, API Grade GL-3 gear oil (except, if you have a T5, then it's Dexron automatic tranny fluid). If that doesn't help much, add friction modifiers. If that doesn't help, either, you have pretty much everything ruled out, and your synchros (1st & 2nd, in your case) are bad. A note to reverse gear: Reverse is not synchronized on most manual trannies. I usually shift in any other forward gear, before shifting into reverse, to prevent grinding.
After drain/refill or adding friction modifiers, you need to drive it a bit (a few miles) to feel the effect, until the synchros are fully soaked in oil.
After drain/refill or adding friction modifiers, you need to drive it a bit (a few miles) to feel the effect, until the synchros are fully soaked in oil.
Last edited by SHO_91; Mar 19, 2010 at 03:47 PM.
Seasoned Member
Joined: Dec 2009
Posts: 269
Likes: 1
From: Eastern NC
Year: 93
Model: Grand Cherokee
Engine: 5.2
Try a drain/refill of the tranny fluid, use SAE 75W-90, API Grade GL-3 gear oil (except, if you have a T5, then it's Dexron automatic tranny fluid). If that doesn't help much, add friction modifiers. If that doesn't help, either, you have pretty much everything ruled out, and your synchros (1st & 2nd, in your case) are bad. A note to reverse gear: Reverse is not synchronized on most manual trannies. I usually shift in any other forward gear, before shifting into reverse, to prevent grinding.
After drain/refill or adding friction modifiers, you need to drive it a bit (a few miles) to feel the effect, until the synchros are fully soaked in oil.
After drain/refill or adding friction modifiers, you need to drive it a bit (a few miles) to feel the effect, until the synchros are fully soaked in oil.
Member
Joined: Feb 2010
Posts: 141
Likes: 0
From: Southeast Ohio
Year: 1995
Model: Cherokee
Engine: 4.0L I6 Power Tech Engine
My case isn't near as bad as jeepkid420, just sometime is hard to put into 1st then 2nd and sometimes reverse. But if it's gonna get worse I wanted to know before hand.
So you think that a drain and refill will work?
So you think that a drain and refill will work?
CF Veteran



Joined: Apr 2009
Posts: 18,786
Likes: 14
From: CT.
Year: 88
Model: Comanche (MJ)
Engine: 4.0 HO
Sounds like either your clutch master or slave is going out. if it's the slave might as well order a whole clutch kit and do it all. I wouldint bother changing the tranny fluid. Thats not the problem unless it ran dry then you might as well get another tranny. I had the same problem. 1rst 2nd and reverse. Replaced the clutch and it was fine after that.
Last edited by JeepingDan; Mar 19, 2010 at 05:46 PM.
Member
Joined: Mar 2010
Posts: 103
Likes: 1
From: Phoenix, AZ
Year: 96
Model: Cherokee
Engine: 2.5l I-4
It's worth a shot, easy to do and cheaper than a rebuild. I have driven plenty of manual trans cars, ran into the same prob twice, and fixed it once with drain/refill. In all cases, the trans shifted way smoother than before. I would consider a rebuild/replacement the absolute last option ($$$). However, there is the slim chance that the clutch doesn't disconnect properly (be it leaking master/slave, or misadjusted/improperly installed clutch), but then, the problem would occur in all gears, and you hear grinding.
Thread Starter
Newbie
Joined: Mar 2010
Posts: 29
Likes: 0
From: Aspen Colorado
Year: 1993
Model: Cherokee
Engine: 4.0L I-6 190 HP
the weird thing about it was this morning i drove it down the street and it would go in to 1 nd 2 fine do u think it could be something to do with the hydrolics like a leak in the line or a clog or something?
Member
Joined: Mar 2010
Posts: 103
Likes: 1
From: Phoenix, AZ
Year: 96
Model: Cherokee
Engine: 2.5l I-4
Where do you get GL-3 gear oil? I did a fluid drop/refill in my 93 the other day, and I just put what the factory calls for in it (75w90 GL-5), along with some Lucas oil stabilizer. Auto Zone had nothing that was GL-3. Anyway, my transmission was noticeably smoother than it was before.
Last edited by SHO_91; Mar 19, 2010 at 09:04 PM.
Member
Joined: Mar 2010
Posts: 103
Likes: 1
From: Phoenix, AZ
Year: 96
Model: Cherokee
Engine: 2.5l I-4
No, you would have that prob in all gears then. Try a fluid change first. It's the easiest and cheapest fix.
Member
Joined: Feb 2010
Posts: 141
Likes: 0
From: Southeast Ohio
Year: 1995
Model: Cherokee
Engine: 4.0L I6 Power Tech Engine
It's worth a shot, easy to do and cheaper than a rebuild. I have driven plenty of manual trans cars, ran into the same prob twice, and fixed it once with drain/refill. In all cases, the trans shifted way smoother than before. I would consider a rebuild/replacement the absolute last option ($$$). However, there is the slim chance that the clutch doesn't disconnect properly (be it leaking master/slave, or misadjusted/improperly installed clutch), but then, the problem would occur in all gears, and you hear grinding.
Member
Joined: Mar 2010
Posts: 103
Likes: 1
From: Phoenix, AZ
Year: 96
Model: Cherokee
Engine: 2.5l I-4
No haven't noticed any grinding, just hard to put into 1st and from 1st to 2nd, and on occation reverse. Almost have to force it into 1st with clutch all the way down, almost as if it were to 'pop' into first and then the same for 2nd, but reverse just dosn't go, but if I work it into other gears, then it goes right into reverse.
Last edited by SHO_91; Mar 20, 2010 at 12:15 AM.
i recently had very similar issues with mine (ax-15), the syncros were shot. i would deffinately do a fluid change first though, its not hard or expensive and its worth a shot. hope its an easy fix for ya
Junior Member
Joined: Feb 2010
Posts: 59
Likes: 0
From: los angles county, ca
Year: 1988
Model: Cherokee
Engine: straight 6, 4.0 liter
i have seen alot of cars and trucks with that same problem. if u havent figured it out yet i would check ur slave and master cylinders, and check and make sure theres no air in the lines. if u can have someone help u try and bleed the clutch. if none of that works its going to be a bad clutch.
Member
Joined: Mar 2010
Posts: 103
Likes: 1
From: Phoenix, AZ
Year: 96
Model: Cherokee
Engine: 2.5l I-4
You can get a complete clutch kit (clutch disk, pressure plate, t/o bearing) between $160 and $200 (also, depends on AX5 or AX15, don't know about others). If you have a shop do it, they'll prolly charge around $300 labor, maybe a bit less, 'cause it's comparatively easy on a Jeep.


