How to replace spark plugs on my 07 JK wrangler - JeepForum.com

 
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post #1 of 14 Old 12-17-2010, 01:15 PM Thread Starter
ccpintl
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How to replace spark plugs on my 07 JK wrangler

Bought my first Wrangler 2 weeks ago, just love it. Is there any write-ups for replacing spark plugs on a JK wrangler. I couldn't find any. 3 spark plugs on the driver side is very easy to be located, but the the rest 3 on the passenger side are hiding underneath a cover. Anybody know how to remove that cover to reach the spark plugs. Thanks......

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post #2 of 14 Old 12-17-2010, 06:50 PM
RockyClymer
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I checked my maintenance manual and there was no info in there on removing the panel...at least I could not find it.

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post #3 of 14 Old 12-17-2010, 07:07 PM
jehnmg
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Just follow the engine wires and you come to the plugs. The passenger side plugs are a bit harder to get to, especially the #1 plug, which is closest to the passenger. You'll need a swivel to get at it.

I did mine last weekend. It took about 10-15 minutes to do the driver's side, and about 30 minutes to do the passenger side. A bit of a pain, but absolutely do-able.

Good luck

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post #4 of 14 Old 12-17-2010, 07:34 PM
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are everyone's plugs going bad already? I still have my originals in after 61K miles...

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post #5 of 14 Old 12-17-2010, 08:41 PM
Unknown303
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Should be able to get at all of them with a swivel attachment. I did when the engine ate water. Just watch your poor knuckles.
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post #6 of 14 Old 12-18-2010, 05:19 AM
wilywillie
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Using a 4" extension and a u-joint ("swivel") with the socket wrench makes some of them easier. The "guides" that the wires run through can be pulled off and pushed back on when you're done. (JK plastic crap)
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post #7 of 14 Old 12-18-2010, 10:57 AM
Vin
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When I hydrolocked my engine, another board member here was able to pull all six plugs with a regular socket wrench and a small extention on the trail. It was rough, but he did it.
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post #8 of 14 Old 12-18-2010, 08:56 PM Thread Starter
ccpintl
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I will give it try tomorrow..... Thanks for the help guys.
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post #9 of 14 Old 05-18-2011, 09:24 AM
Rckcrwlr247
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I spent 2 hours changing the spark plugs on my 07 unlimited and finally got to the back sparkplug through the wheel well on the passenger side using my left hand. At first I couldn't get the wire off. When I got the wire off, I went through the top and I used a 3inch extension with a swivel to a 10inch extension and the spark plug came right out. This is almost certainly the worst Jeep design ever. If the battery tray had a removable section (close to the engine)all you would have to do is pull the battery and it would be easy as pie. Good luck guys and gals.
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post #10 of 14 Old 07-06-2014, 12:09 AM
JeepK9_79
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The plugs on the passenger side at first look seem difficult and reading all the posts did give me any confidence however they are just as easy as the passenger side, it just require a little bit more prep.
First, you will need three medium/large zip ties and a flat head screw driver. Now remove the rubber tube that is connected to the air box that holds the air filter and move it out of the way.
Secondly, there are two other rubber tubes that are held hostage by a piece of plastic, use your screw driver to unlock. Once they are freed zip tie it up and out of the way.
Now, the only thing that should be in your way is the plug wires. So disconnect them all and zip tie them up and out of the way, that is unless you have a little helper. Now the prep is done so go to town.
Seriously, you do not have to go out and buy anything unless you need an excuse to go buy something you don't have.
Tools: 3 inch extension, spark plug socket, ratchet, flat head screw driver, two zip ties, 9 year old daughter(wanted to help). Staring at it the area and stressing out 15 min, Prep 5 minutes. Total time 10-15 mins for the passenger side. I didn't count the time staring at it stressing out. Good luck and I hope this helps!
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post #11 of 14 Old 07-06-2014, 08:26 AM
jabsther
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I agree with the others, swivel worked best to get them out.
Maybe I dont remember them being to difficult because I did mine shortly after I did my wife's Highlander. Front three 15 minutes, back three took 3+ hours. Back three you cant see next to firewall. Had to take intake manifold and wiper motor panel out to get to them.
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post #12 of 14 Old 07-06-2014, 09:39 AM
rirrgang
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I waited until the magic 100k that the manual says to change them at. Mistake, they were probably done at 50K.

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post #13 of 14 Old 07-06-2014, 02:19 PM
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post #14 of 14 Old 07-07-2014, 02:47 PM
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Another good trick - use the spark plug socket that has an external hex on the end - a 5/8 box wrench (or 5/8 shallow socket with swivel) to turn it. That can get you into many a tight place. Its easier to get the socket on it with nothing connected - then wrench or socket to break loose and fingers the rest of the way!

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