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Unread 05-25-2013, 09:25 PM   #1
RyanZ
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2012 KK Liberty 
 
Join Date: May 2013
Location: bossier city, Louisiana
Posts: 1
2012 Liberty Jerking Issue

Sorry if this has already been talked about before. I did a quick search and couldn't find anything. I just bought a used 2012 Jeep Liberty Sport, Has 30K miles on it.

What its doing is when I'm driving say 60mph and the RPMs are at 1500. The jeep will have a small jerk to it. Its very small but very annoying.

I took it to the dealership and he said its something to do with the programing for something called full/patial lock up ? Any thoughts....


Last edited by RyanZ; 05-25-2013 at 09:37 PM..
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Unread 05-25-2013, 09:37 PM   #2
Drednot
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1991 YJ Wrangler 
 
Join Date: Aug 2005
Location: phoenix, az
Posts: 1,443
Maybe the Torque Converter Clutch locking and unlocking due to a break in program?
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Unread 05-26-2013, 12:20 AM   #3
xxxxxxxxxxxxSmetna
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2011 KK Liberty 
 
Join Date: Nov 2012
Location: Finger Lakes, New York
Posts: 93
Normal. The 42RLE transmission is pretty . . . . unrefined . . . lets use that word.

I've driven a 2006 and a 2011 both with the 42RLE, and they shift hard between first and second, and often times between other gears too. It's a Jeep.
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Unread 05-26-2013, 03:28 PM   #4
Gageraid
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2008 KK Liberty 
 
Join Date: May 2012
Location: Branchburg, New Jersey
Posts: 1,411
Nature of the beast, unless you need to change your spark plugs.
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