Calgary Jeep Association

4x4 Related Groups => Tech Talk => Topic started by: FiEND on December 16, 2008, 08:17:58 PM

Title: tranny won't shift.....
Post by: FiEND on December 16, 2008, 08:17:58 PM
over the past couple weeks i noticed when i am at a light in neutral, i push in clutch and go to 1st gear.  there is a little buck (the jeep moves) a bit.

now when i push in the clutch, start the jeep i can put it into a gear as if everything is normal

but if i release the clutch it doesn't seem to work again and i cannot put it into any gears.

ie. push in clutch, start heep, release clutch, press clutch again and cannot put into gear....

anyhoo going home so can check back in the morning.  thanks for lookin'  :'(
Title: Re: tranny won't shift.....
Post by: JackstandJohnny on December 16, 2008, 08:33:26 PM
slave cylinder?

the bucking thing sounds similar to my old ford. thats what its problem was. slave was leaking and crappy. i only used the clutch to get it into first gear anyways, and powershifted it everywhere else
Title: Re: tranny won't shift.....
Post by: Immortal on December 16, 2008, 08:40:12 PM
Release bearing?
Title: Re: tranny won't shift.....
Post by: Vinman on December 16, 2008, 09:22:48 PM
over the past couple weeks i noticed when i am at a light in neutral, i push in clutch and go to 1st gear.  there is a little buck (the jeep moves) a bit.

now when i push in the clutch, start the jeep i can put it into a gear as if everything is normal

but if i release the clutch it doesn't seem to work again and i cannot put it into any gears.

ie. push in clutch, start heep, release clutch, press clutch again and cannot put into gear....

anyhoo going home so can check back in the morning.  thanks for lookin'  :'(

The buck is probably normal, try this, press clutch and wait a couple of seconds before engaging tranny. I bet it won't buck.
My old TJ did the bucking and I concluded it was the "coasting" of the internals of the tranny and releaseing the clutch before they had a chance to stop after pressing the clutch.


The rest I can't help you with.
Vince
Title: Re: tranny won't shift.....
Post by: Waytec on December 16, 2008, 09:36:12 PM
jeep?  ;D
Title: Re: tranny won't shift.....
Post by: Immortal on December 16, 2008, 10:06:32 PM
jeep?  ;D

TOUCHE'!!! LOL!!!
Title: Re: tranny won't shift.....
Post by: barmanjay on December 16, 2008, 10:39:45 PM
I bet your clutch fluid is low,.. here is a good test if you don't wanna check the fluid level,.. If there is just a little bit of fluid in there,.. you can pump up the pressure, before you put it into gear.
Title: Re: tranny won't shift.....
Post by: FiEND on December 17, 2008, 09:46:38 AM
fluid in the reservoir is full.

cant check tranny fluid yet, need to pick up a socket

when i start it, pedal down, i can shift no problem all gears.  when i let off the pedal and depress it again, wont shift.  but does seem if i hold the pedal down for a short while it will shift easier.
Title: Re: tranny won't shift.....
Post by: barmanjay on December 17, 2008, 09:59:04 AM
Here is another test

when you depress the clutch and it doesn't go into gear,.. vigorously rattle the shifter back'n'forth in neutral like you are 16 again watching pamela anderson on baywatch,.. then try it.,...... mmmmmm,... boooobs,.... glad my wife has real ones :D

My tranny doesn't like 1st when it warms right up, so I have to do that at stop lights on occasion

This is a sign of tranny wear,.. or needing adjustment,.. or needing a fluid change

My tranny is just old
Title: Re: tranny won't shift.....
Post by: Bnine on December 17, 2008, 02:19:18 PM
Sounds like air in the slave and master Al. See if it works better after double pumping the clutch.
Title: Re: tranny won't shift.....
Post by: FiEND on December 17, 2008, 02:26:32 PM
yea sounds like it, that's what i was thinking before.. i tried pumping it and nothing, will try again...


nope, pumping doesn't help.  only when i hold the pedal down does it get a little easier.  can feel it turning though like reverse would grind if i tried to force it.
Title: Re: tranny won't shift.....
Post by: FiEND on December 17, 2008, 03:44:56 PM
pulled the slave off the bell and pumped it about 15 times, no air coming out the reservoir.  ugh
Title: Re: tranny won't shift.....
Post by: Bnine on December 17, 2008, 04:19:31 PM
Shift boot is far eough down on the shifter? It get easier as the cab warms up?
Title: Re: tranny won't shift.....
Post by: FiEND on December 17, 2008, 04:32:01 PM
yea it's been inside the work garage since i brought it home sat night.  +15c

gonna bring more tools.. i have that slave and line you gave me as well i could try.  or price out a new master/slave thingy.

working in airdrie till friday now so it will have to sit until weekend.
Title: Re: tranny won't shift.....
Post by: hps4evr on December 17, 2008, 08:59:44 PM
i thought possibly a little air in the system. but it could also be the internal transmission wind-down. wait a second and then use the clutch and see if it just needs a couple seconds to let things equalize. try power shifting. if it goes int oall gears just fine with a little feathering of the throttle then maybe it is a clutch issue... how has this jeep been since all the work you did to it???
Title: Re: tranny won't shift.....
Post by: FiEND on December 18, 2008, 08:15:26 AM
jeeps been fine.  cant shift at all, once the tranny starts turning, the clutch pedal doesn't stop it.  clutch is still good, i checked it when i started feeling problems.  3rd to 5th it stalls quite fast, no chatter or slipping.

gonna get a new slave and master this weekend.  hopefully a sealed unit from stealership if its not too expensive.
Title: Re: tranny won't shift.....
Post by: BlackYJ on December 18, 2008, 08:44:27 AM
gonna get a new slave and master this weekend.  hopefully a sealed unit from stealership if its not too expensive.

I think a complete system including master, tubing, and slave is about $300-350 and it comes loaded and ready to install.  The change out takes about 20-30 mins.  I know when my slave was going I had troubles getting it out of gear and sometimes it would grind going into gear
Title: Re: tranny won't shift.....
Post by: Bnine on December 18, 2008, 02:41:48 PM
Didnt I give you a full spare set of master and slave Al?
Title: Re: tranny won't shift.....
Post by: FiEND on December 19, 2008, 12:45:23 PM
Didnt I give you a full spare set of master and slave Al?

got a slave and tubing but no master (that i know of).  will have to check the parts van to see if it is attached

the slave/master for my heep is $350
the slave/master from a 2003 rubicon is $150

think the 03 will fit?  i was hoping to research it today but too busy so wont know in time to order today
Title: Re: tranny won't shift.....
Post by: jtmtetat on December 21, 2008, 10:11:57 PM
My 89 YJ did the same thing.  Turned out it was the master cylinder.  Put on a new one and it shifts like new. $150ish at NAPA
Title: Re: tranny won't shift.....
Post by: Bnine on December 22, 2008, 09:48:48 AM
Dont see why the 03 one wouldnt fit Al.

I re did Denise's and it looks identical to the one I pulled off mine when I did the advance adapter conversion.

Oh, and I'm pretty sure I only have 1 laying around the garage, which means you should have one. Since I did pull two out recently.

If you cant find it, come over and grab another one from me for the time being. At least you can swap one of mine and mage sure its your problem.
Title: Re: tranny won't shift.....
Post by: FiEND on December 23, 2008, 09:29:33 AM
yea i checked.  i have the slave and tubing but no master.  thanks though.  ordered the part, lots of websites seem to sell ones from 97-03 and some say 97-02 and some 97-06 so worth a try.
Title: Re: tranny won't shift.....
Post by: hps4evr on December 23, 2008, 06:48:35 PM
only reason i can think there might be a change in those years would be when they went from the nvg3550 to the nsg370. other then that... they should be the same... anyone else confirm this???