Ignition coil - JeepForum.com

 
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post #1 of 9 Old 01-11-2014, 10:20 AM Thread Starter
bkbeekay
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2009 KK Liberty 
 
Join Date: Jan 2014
Location: Manchester
Posts: 3
Ignition coil

A HUGE HELLO to all that are out there from a newbie. Great Forum. Been a lurker for a LONG time. Have an 09 liberty. 118000 miles. Bought it new.....and never had any "major" issues. (Use it as a daily driver and as a beach buggy.)
Now I have one problem and don't know what to do (maybe)

No problems with acceleration to get to any speed or (4th gear) overdrive. When doing between 45 and 55 on highway in overdrive and I take my foot off the gas I get a slight bucking when I slightly accelerate to get back to speed.
Tach doesn't show any jumping that I can notice. Thought it may have been issue with trans so it's at stealership.
They are saying it's an ignition coil issue. Want to replace all 3 and plugs.
Plugs were last changed at about 60 thou so I have no problem with that.
Should ALL THREE coils be changed or just the one giving me problem? (if they can tell which one)
Thanks
bOb....ski

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post #2 of 9 Old 01-11-2014, 01:19 PM
Gageraid
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2008 KK Liberty 
 
Join Date: May 2012
Location: Branchburg
Posts: 1,525
Just change the plugs, not the ignition coils. If problem persists, maybe the coils.
Our KK's aren't that smooth to begin with...

OME lift
Hypertech Max Energy
CAI, Gibson exhaust, 4.7L throttle body
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post #3 of 9 Old 01-11-2014, 02:02 PM
tommudd
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2004 KJ Liberty 
 
Join Date: Aug 2008
Location: Central OH/ Kilimanjaro,Tanzania
Posts: 5,638
Should be changing your plugs every 30,000 or so with a good copper core plug

04 KJ 4.5 JBA lift, 03 KJ 2.5 JBA coilovers,
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post #4 of 9 Old 01-11-2014, 05:56 PM
jrich58
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2008 KK Liberty 
 
Join Date: May 2013
Location: Plattsburgh
Posts: 93
Quote:
Originally Posted by tommudd
should be changing your plugs every 30,000 or so with a good copper core plug
+1
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post #5 of 9 Old 01-11-2014, 06:11 PM
LKWJEEPER
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2009 KK Liberty 
 
Join Date: Nov 2012
Location: Clover
Posts: 1,060
You should've already changed them twice since then. Change your plugs and see what happens. If not buy new coils and see again. Don't pay the dealer to do it. It'll be expensive.

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post #6 of 9 Old 01-11-2014, 06:24 PM
AtTheHelm
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The owners manual calls for new IG coils every 60k iirc..
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post #7 of 9 Old 01-11-2014, 06:35 PM
tjkj2002
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2002 KJ Liberty 
 
Join Date: Dec 2009
Location: Colorado
Posts: 8,386
Quote:
Originally Posted by AtTheHelm View Post
The owners manual calls for new IG coils every 60k iirc..
The 3 plug wires.

To the OP what ever you do if you do change 1 or all 3 coils make sure you buy the OEM coils from the dealership,there worth the extra $$$.Same goes for the 3 plug wires and change the wires with the coils and/or plugs.

'02 Liberty sitting on 35" tires,HP44,RockJock60,and AtlasII t-case
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post #8 of 9 Old 01-12-2014, 08:34 AM Thread Starter
bkbeekay
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2009 KK Liberty 
 
Join Date: Jan 2014
Location: Manchester
Posts: 3
Thanks

Thanks all.....will be heading over to shop tomorrow in AM.
Need to "face to face" with service mgr.
Too much to comprehend over telephone.

bOb....ski
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post #9 of 9 Old 01-12-2014, 05:27 PM
Gageraid
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2008 KK Liberty 
 
Join Date: May 2012
Location: Branchburg
Posts: 1,525
Quote:
Originally Posted by bkbeekay View Post
Thanks all.....will be heading over to shop tomorrow in AM.
Need to "face to face" with service mgr.
Too much to comprehend over telephone.

bOb....ski
Just remember you can do the spark plugs at home by yourself, and same with the ignition coils. You could probably do it blindfolded.

OME lift
Hypertech Max Energy
CAI, Gibson exhaust, 4.7L throttle body
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