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5 Speed transmission slip


 
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Dakar
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Joined: 29 Jul 2005
Location: Harrisonburg, VA

PostPosted: Wed Mar 26, 2008 2:40 pm    Post subject: 5 Speed transmission slip Reply with quote

Hey everyone, my 98 XJ 5spd started to slip on me the other day. first 4th gear, then 5th, and now sometimes 3rd. first and second seem to be fine. Is it just shot or do I need to add fluid somewhere? It stays in gear just fine while cruising down the highway, but on the uphills when I give it more gas, it tends to slip out. any thoughts/ideas??
_________________
Black 1998 XJ 4.0 Manual.
3" Rusty's lift
30x9.50 BFG AT's
THULE M.O.A.B. roof basket
BAJA Lights (because doing it in the dark rocks!)

about to install exhaust, steering stabilizer, throttle body spacer.
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kaos
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Joined: 10 Jan 2006
Location: Iceland

PostPosted: Thu Mar 27, 2008 1:30 am    Post subject: Reply with quote

Your clutch plate is probably worn and needs to be replaced. You can of course check the clutch fluid level first, but the symptoms don't sound like that is it.

You should probably replace the pressure plate and throwout bearing at the same time, simply to avoid having to pull the whole thing apart again in the near future (replacing any of these components means removing either the engine or the transmission; I'm not sure which is easier in an XJ).

In the meantime, I would recommend avoiding this slippage as far as possible (go easy on the gas and/or use lower gears), as you might otherwise need to have the flywheel resurfaced or replaced.

--
Kári.
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Dakar
Member


Joined: 29 Jul 2005
Location: Harrisonburg, VA

PostPosted: Thu Mar 27, 2008 4:11 am    Post subject: Reply with quote

I just checked the fluid level and it's where it should be (although I think it needs to be changed). looks like i'm gonna have to tear into it. thanks!
_________________
Black 1998 XJ 4.0 Manual.
3" Rusty's lift
30x9.50 BFG AT's
THULE M.O.A.B. roof basket
BAJA Lights (because doing it in the dark rocks!)

about to install exhaust, steering stabilizer, throttle body spacer.
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TJRobbie00
Member


Joined: 13 Dec 2007
Location: Richmond Va.

PostPosted: Thu Mar 27, 2008 5:41 pm    Post subject: Reply with quote

its most likely your clutch.

this is the way to test if your clutch is toast

drive up to a tree and let your front bumper touch it then while sitting with the bumper hitting the tree put your tranny in like... 3rd

apply gas and if you Jeep starts to "go" and deosnt stall

YAY!!! you need a new clutch which sux it happened to me last month

if it stalls then your clutch is perfectly fine.

let us know how it works out.
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Dakar
Member


Joined: 29 Jul 2005
Location: Harrisonburg, VA

PostPosted: Fri Mar 28, 2008 4:52 am    Post subject: Reply with quote

Thanks. yeah, it's shot. I took it in for an estimate, and installing the clutch kit and machining the flywheel is estimated at 760.33.....before a whopping %10 student discount. Maybe I'm ignorant, but I think I'm going to get another estimate. so much for getting a new mountain bike this year.
_________________
Black 1998 XJ 4.0 Manual.
3" Rusty's lift
30x9.50 BFG AT's
THULE M.O.A.B. roof basket
BAJA Lights (because doing it in the dark rocks!)

about to install exhaust, steering stabilizer, throttle body spacer.
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kaos
Member


Joined: 10 Jan 2006
Location: Iceland

PostPosted: Fri Mar 28, 2008 1:59 pm    Post subject: Reply with quote

The flywheel may not need machining. In fact, unless the slipage has been going on for a long time, it's unlikely it will. At least, that has been my experience with other cars. I think the machining must account for a considerable part of the estimate.

--
Regards,
Kári.
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DozerDan
What the deuce?
What the deuce?


Joined: 03 Jan 2004
Location: Where im at

PostPosted: Sat Mar 29, 2008 8:29 am    Post subject: Reply with quote

That is not a horrible price, maybe not the best, but not too bad.
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Dakar
Member


Joined: 29 Jul 2005
Location: Harrisonburg, VA

PostPosted: Sat Mar 29, 2008 8:18 pm    Post subject: Reply with quote

They said the cost of machining the flywheel would be around $100 through them, and I actually found out I could get a heavier duty clutch kit, and a heavier duty flywheel for $314 on my own, and I found a good mechanic who said he'd do the job for $350, so i'm upgrading and saving a couple $$$$.
_________________
Black 1998 XJ 4.0 Manual.
3" Rusty's lift
30x9.50 BFG AT's
THULE M.O.A.B. roof basket
BAJA Lights (because doing it in the dark rocks!)

about to install exhaust, steering stabilizer, throttle body spacer.
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ehirner
Moderator
Moderator


Joined: 01 Jan 2004
Location: Eastern PA

PostPosted: Mon Mar 31, 2008 10:34 am    Post subject: Reply with quote

TJRobbie00 wrote:
its most likely your clutch.

this is the way to test if your clutch is toast

drive up to a tree and let your front bumper touch it then while sitting with the bumper hitting the tree put your tranny in like... 3rd

apply gas and if you Jeep starts to "go" and deosnt stall

YAY!!! you need a new clutch which sux it happened to me last month

if it stalls then your clutch is perfectly fine.

let us know how it works out.

I'm sure that's the professional version of this test, right?
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Dakar
Member


Joined: 29 Jul 2005
Location: Harrisonburg, VA

PostPosted: Tue Apr 01, 2008 9:04 pm    Post subject: Reply with quote

Well, $700 later, I'm back on the trails with a heavy duty clutch and flywheel. The U-joint was also bad. it was worn smooth and was missing bearings, and a chunk of it. the pressure plate was missing part of it as well. The new clutch feels soooooooooo goood! I hardly realized how bad it had gotten.
_________________
Black 1998 XJ 4.0 Manual.
3" Rusty's lift
30x9.50 BFG AT's
THULE M.O.A.B. roof basket
BAJA Lights (because doing it in the dark rocks!)

about to install exhaust, steering stabilizer, throttle body spacer.
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View user's profile Send private message Send e-mail AIM Address Yahoo Messenger
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