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Unread 01-17-2012, 06:44 PM   #1
lildube4226
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2002 KJ Liberty 
 
Join Date: May 2011
Location: Seabrook, NH
Posts: 30
02 liberty 4cyl. 2.4l spark plug location/ Pics are great!!

Hey jeep family/ cyber mechanics,
I have been diagnosing a few current problems with my Liberty. I am throwing an engine code, with the help of some other members I have decided to switch out my spark plugs and start solving the issue from their. Correct me if I am wrong, but this should correct a cylinder misfire in cylinder 4, correct?
That being the case I have no idea where my plugs are, I assume there near the four coils that run off from each cylinder. How do I access these spark plugs? Any tips or information I should know about swapping them? Thanks everyone. All pics + information on this will be an enormous help.
Scott

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Unread 01-17-2012, 06:54 PM   #2
tjkj2002
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2002 KJ Liberty 
 
Join Date: Dec 2009
Location: Colorado
Posts: 8,176
The 2.4 gasser uses one coil pack and 4 spark plug wires.Just follow the plug wires to the spark plugs.

Don't forget to change the plug wires also when changing the plugs.If there is any oil in the spark plug tubes(oil will be on the wire boots) you need to chnage the valve cover gasket and tube seals,common misfire cause in those types of engines.
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'02 Liberty sitting on 35" tires,HP44,RockJock60,and AtlasII t-case
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Unread 01-17-2012, 07:08 PM   #3
lildube4226
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Join Date: May 2011
Location: Seabrook, NH
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I see the four coils and I can pull them off, after I pop the coils off where do I go from here?
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Unread 01-17-2012, 08:10 PM   #4
tjkj2002
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Quote:
Originally Posted by lildube4226 View Post
I see the four coils and I can pull them off, after I pop the coils off where do I go from here?
There is only one coil on the 2.4 gas engine.From that one coil are 4 spark plug wires.Follow the wires to the valve cover,pull the plug wires up out of the valve cover and the tubes is where the spark plugs are.
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'02 Liberty sitting on 35" tires,HP44,RockJock60,and AtlasII t-case
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Unread 01-17-2012, 09:18 PM   #5
lildube4226
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Location: Seabrook, NH
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is there any links to a diagram of this?
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Unread 01-17-2012, 09:51 PM   #6
streetglideok
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2005 KJ Liberty 
 
Join Date: Jul 2011
Location: Colorado Springs, Colorado
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The plugs will be right on top, in the center of the valve cover. I strongly suggest, since you are a little inexperienced, you get someone to help you out. Not knowing what you are doing may cause more issues, like a stripped spark plug hole, broken plug in the head, etc. Then you will be in really deep doo doo.
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Unread 01-20-2012, 12:39 PM   #7
lildube4226
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Join Date: May 2011
Location: Seabrook, NH
Posts: 30
I appreciate it man thanks alot for the help
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Tags
cylinder misfire , help please , ignition coil , spark plug

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