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Old 03-14-2012, 02:19 PM   #1
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06 drive line stutter from dead stop? anyone else?

OK, I bought my wife a nice clean 2006 TJ 6 cyl auto with 33k on it so I could get my 95 YJ back from her and get the perfume smell out of it....

I noticed with the TJ that from a dead stop as you accelerate there is what seems to be a slight stutter in the 0-4mph range. Sort of like if the clutch was grabbing or what if feels like when you turn a tight corner with 4wd engaged and locked.

It's a auto so I know it's not the clutch and I know the 4wd isn't engaged. It happens when you accelerate in a strait line or turning so I don't think it's steering related. It only happens in the 0-5mph range accelerating from a dead stop and it's not the engine as that is as smooth as silk. Has to be in the transmission or driveline.

It's my first TJ, Do they all do this? Any thoughts or ideas?

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Old 03-14-2012, 03:25 PM   #2
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Is it engine related? Sort of sounds like the rear brakes shoes are hanging up or something.

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Old 03-14-2012, 05:42 PM   #3
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Are there any other vibratoins at higher speeds? Does it have a lift or larger tires?
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Old 03-15-2012, 10:57 AM   #4
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All stock / no lift. Engine is smooth as can be. runs drives as expected all other times other than 0-5mph from a dead stop. Brakes are good and run cool.

the orig. window sticker says it has a 30" factory tire option and a axel upgrade to some sort of locking dif. (not sure what kind of Axel it is as I haven't researched it yet)

IF it was a manual transmission I would be 100% convinced the clutch was grabbing.
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Old 03-15-2012, 02:02 PM   #5
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Try this next time you get a chance, find a place where you can start & stop without having to turn around( large parking lot, rural road, etc) & put the transfer case in 4wd High. Start & stop a few times & see if it still has the stutter. Don't make any sharp turns while in 4wd on pavement because that can cause damage to your drivetrain.
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Old 03-16-2012, 08:44 AM   #6
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Alright. Tried it in 4wd and it doesn't stutter. pop it back into 2wd and it does it again.

Also tried to isolate the brakes by rolling to a stop in neutral, putting on the parking brake then I putting it in drive. released the parking brake and accelerated away. still does it.

Seems like it's right at the top of 1st gear right before it shifts. I think the Jeep may have been stored before we got it ( a 2006 with 33k) I wonder if someting is plugged in the trany from sitting? Could the Torq converter do this just as it's locking up?
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Old 03-16-2012, 02:41 PM   #7
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Sounds like something in the rear drivetrain (bad u-joint, pinion bearing,etc.) When in 2wd the rear drive shaft & axle receive all the torque from the engine/transmission & something is causing it to bind or stutter on takeoff. When you put it in 4wd you split the load & the front axle is helping the rear axle to move the Jeep. That reduces the stress on the rear drivetrain & you don't get the stutter. I don't "think" it's the transmission but you can test that theory also, you can remove the rear driveshaft & drive the Jeep without it. Its not that hard to remove it(just a wrench & a screwdriver) Then put the transfer case in 4hi & see if it still stutters.

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