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Unread 02-16-2004, 08:45 AM   #1
adarrell
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lurching from front end during slow turns?

guy i bought it from said this is a common jeep thing

i think hes BSing me

any thoughts?

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Unread 02-16-2004, 09:28 AM   #2
Whybu1
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Maybe he meant common to THAT Jeep. No "lurching" from my WJ or TJ.
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Unread 02-16-2004, 09:36 AM   #3
adarrell
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mine is All time 4x4, does that make a difference?
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Unread 02-16-2004, 10:16 AM   #4
Astorm
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My 00 JGC with Quadra-Drive does the same thing. Its a kind of Moaning noise. I don't think this makes it normal, but at least you're not alone. I'm gonna change the Transfer Case/diff fluid in hopes of alleviating this.
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Unread 02-16-2004, 10:33 AM   #5
infinity
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No, you're not alone. My 98 Grand Cherokee with quadra-trac doesn't actually "lurch", but when I make a slow sharp turn it makes the moaning noise and slows way down if I don't give it some gas during the turn. I guess it has something to do with the all-time 4wd. Having the t-case and diff fluids changed sounds like a good idea, and a dealer (not the one we bought it from) actually recommended that we do that to my jeep since we just bought it, but I haven't yet. I'm going to look into it this weekend when I go home. This might help your lurching problem as well.
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Last edited by infinity; 02-16-2004 at 10:36 AM..
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Unread 02-16-2004, 06:47 PM   #6
Stocker
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I you are talking about a driveline binding problem, such as a conventional 4wd system on a hard surface with hubs locked and 4wd engaged, then you may have a failed viscous coupler in your 249 transfer case - especially if it occurs when your drivetrain is fully warmed up, and doesn't bind up when cold.
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Unread 02-16-2004, 07:01 PM   #7
Meerkat
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Quote:
Originally Posted by adarrell
guy i bought it from said this is a common jeep thing

i think hes BSing me

any thoughts?

Sounds like it may not be uncommon , but that doesn't make it right. I have no such problem with mine.
If you do perform a fluid change, make sure you use exactly the right fluids, and accept no substitutions.
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Unread 02-18-2004, 11:38 AM   #8
liftedlimited13
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i have a 97 limited with quadra-trak and in that condition it doesnt moan but it sounds more like squealing tires. dont know if thats a different problem or not. hope this helps.
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Unread 02-18-2004, 04:30 PM   #9
unholy
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Both the "lurching" and the "squealing tires" are symptoms of a bad viscous coupler if you have a quadratrac AWD transfer case.
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Unread 02-19-2004, 07:22 AM   #10
liftedlimited13
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so what can i do about it??
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Unread 03-03-2004, 10:35 AM   #11
fortieri
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Thats a good question.
I have a '97 GC L with the Quadra Trac II. Mine also lurches during turns and a tire will slip if turning tight over loose pavemant.
What would be the aprox. cost of fixing the VC?
Or is it a lot of work to replace the t-case with the select trac model?
If it's a simple just swap the t-cases I might like the select trac better. But if alot of other parts or computer needs changed I will just fix this one.

Thanks for any help.
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Unread 03-03-2004, 10:58 AM   #12
Meerkat
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Quote:
Originally Posted by fortieri
Thats a good question.
I have a '97 GC L with the Quadra Trac II. Mine also lurches during turns and a tire will slip if turning tight over loose pavemant.
What would be the aprox. cost of fixing the VC?
Or is it a lot of work to replace the t-case with the select trac model?
If it's a simple just swap the t-cases I might like the select trac better. But if alot of other parts or computer needs changed I will just fix this one.

Thanks for any help.

It should be a straight across swap. Even the bezel should snap in place without changing the console out. The biggest area of concern would be making sure the splines of the new unit match the splines of the old unit in number, length, and outside diameter.
One of these days, I'm going to sit down and build a matrix of transmission/TC/engine combinations by year.....
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Unread 03-03-2004, 02:47 PM   #13
Texas ZJ1
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Viscous Coupler.

Mine does it too. Except I'm running a detroit and truetrac...talk about tires chirping!


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Unread 03-13-2004, 02:16 PM   #14
Talon92AWD
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Bad Viscous Coupling

I too suffer from a bad coupling. FYI, FAQ page has a step by step on how to swap out the ~$500 coupling.

Anyway, I was wondering if anyone can speculate on just driving around with a bad VC? Would it ever sieze/ lock the wheels? Is it a real safety hazard? If it is bad, does it get worse? Maybe it's a binary thing (either good or bad, not kinda bad) Perhaps it's more like one of those annoyances that can be lived with.

Thanks for any opinions!
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Unread 03-13-2004, 05:12 PM   #15
fortieri
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I'm not trying to put too much money into the jeep right now. So I was wondering if it would be bad to get a select trac TC from the junk yard. If I did what should I look for or out for.

What is the average cost for jeep transfer cases?

After I fix the cracked manifold, TC, and fuel pump/sending unit gasket leak the GC will be ready to go.
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'97 Grand Cherokee Limited
Prety much stock so far.

Mods.
K&N drop in
Fake HID head lights (they look very good though)
NV249 to NV242 swap
Sounds: Pioneer 8600MP head unit, 2 Audio bahn 12" flame excursion subs, water cooled Bazooka amp (750W RMS), street wires 1fd cap, Rockford 6.5 coax & componants in all doors, stock infinity amp powering 6.5's for now.

Future Mods.
After market head lights (if there are any?)
Better exhaust (deeper but not much louder)
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