Some Spark Plug Change Help - JKowners.com : Jeep Wrangler JK Forum
 
LinkBack Thread Tools Display Modes
post #1 of 17 Old 01-13-2013, 11:59 AM Thread Starter
Newbie
 
Join Date: Jan 2013
Location: Shelby, NC
Posts: 3
Feedback: 0 reviews
Some Spark Plug Change Help

Here some info other may find helpful when changing your spark plugs.

I pulled all the plugs today on my 2011 JK. It has just under 33K on the motor. Wow. The gap was close to .070 on most and a couple were even higher. The driver side was a breeze to remove with just a long extention and 3/8" breaker bar. I wish the factory would learn to use never seize or some sort of thread coating. It felt like the plugs were installed with an air impact gun. The plugs all came off very easy by first twisting the boot around the plug and then pulling straight back.

The passenger side of course was little more challenging. The middle plug was the most troublesome, but I found that a long spark plug socket, about 4 inches in length was the ticket. The end of the socket had a 3/4" nut and placing a twelve point closed end wrench on the nut provided an easy way to loosen and remove the middle plug. No swivel sockets needed. The other two were easily removed. In fact I think the right rear plug might have been easier than the front right plug.

For access to the passenger side plugs, I perched myself on the right fender and reached down into the engine area.

I think the longer spark plug sockets were marketed a few years back for V-6 GM Vortec engines. I had one from previously owning a V-6 Chevy pickup that required the longer socket for the plugs.

I regapped the plugs to .050 and what a difference the engine has in throttle response. I will change out the plugs at 45K. I mainly just pulled them today to see the condition of the plugs since leaving the factory.

While the manual may say the plugs last up to 100K, the gap sure doesn't, especially on a manual transmission vehicle. On my 2011 Street Glide the plugs get toss every 10K, even though the MOCO says you can go 50K on a stock set of plugs.
Barry13 is offline  
Sponsored Links
Advertisement
 
post #2 of 17 Old 01-13-2013, 12:47 PM
Granite Guru
 
rich6700's Avatar
 
Join Date: Sep 2012
Location: Glenside, Pa
Posts: 244
Feedback: 0 reviews

100k on a spark plug is just bull shit. I change the plugs in my Electra Glide every year, the heat and idling for long periods of time kill the plugs.
rich6700 is offline  
post #3 of 17 Old 02-13-2013, 04:51 AM
JKO Addict!
 
rdlynch2's Avatar
 
Join Date: Jul 2011
Location: Albany NY
Age: 34
Posts: 3,175
Feedback: 1 reviews

Is their a write up on how to change em out, and what plugs specifically to get?

I have never even checked nonetheless changed my or any spark plugs before and am interested in learning. Thanks

2008 Black 2Dr 6spd D30/44
RK 2.5 X-Factor | Synergy tie rod | 35x12.5 MTRK's | BFH front | Genright rear | Yukon 5.13's | ARB front locker | Warn M8000 w/MasterPull synthetic | Rigid 10'' E-series
rdlynch2 is offline  
Sponsored Links
Advertisement
 
post #4 of 17 Old 02-13-2013, 04:53 AM
JKO Addict!
 
Goodysgotacuda's Avatar
 
Join Date: May 2009
Location: Denton, TX
Posts: 13,230
Feedback: 1 reviews

Pulling the inner fender on the passenger side makes the job easier. I don't think I'd ever pull an entire set to just regap old plugs though.

SOLD - '09 2dr Rubicon - 1.0Gal | 6spd | 37s | 4.88s |
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
| OR-Fab cage | Poly Cage | BFH Front | XRC Rear | XRC12 Winch | Walker Evans Beadlocks |

Retired from the Jeep community, for now.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Goodysgotacuda is offline  
post #5 of 17 Old 04-07-2013, 08:17 PM
Wheeler
 
Join Date: Feb 2013
Age: 45
Posts: 60
Feedback: 0 reviews

Quote:
Originally Posted by rich6700 View Post
100k on a spark plug is just bull shit. I change the plugs in my Electra Glide every year, the heat and idling for long periods of time kill the plugs.
Well the plugs are platinum 100k mile plugs. And if they fail before then, the PCM will tell you fairly quick when a misfire occurs. The computers are pretty picky now a days & it doesn't take much for it to find a misfire.

Contact me for a true HID retrofit for your JK
crawlin_archer is offline  
post #6 of 17 Old 04-08-2013, 04:32 PM
JKO Addict!
 
rdlynch2's Avatar
 
Join Date: Jul 2011
Location: Albany NY
Age: 34
Posts: 3,175
Feedback: 1 reviews

Does anyone have a write up on how to change out jK spark plugs?

I have never done it before on any vehicle and would like to have some semblence of an idea as to what to do beforehand. Thanks

2008 Black 2Dr 6spd D30/44
RK 2.5 X-Factor | Synergy tie rod | 35x12.5 MTRK's | BFH front | Genright rear | Yukon 5.13's | ARB front locker | Warn M8000 w/MasterPull synthetic | Rigid 10'' E-series
rdlynch2 is offline  
post #7 of 17 Old 04-08-2013, 05:34 PM
JKO Addict!
 
Goodysgotacuda's Avatar
 
Join Date: May 2009
Location: Denton, TX
Posts: 13,230
Feedback: 1 reviews

They're pretty basic other than how you manipulate your tools to get the plugs out. As mentioned, the inner fender on the passenger's side helps a bunch. Don't mix up the plug wires. Run the plugs down by hand as far as you can then +1/4 turn with a ratchet is a fair estimate for torque.

SOLD - '09 2dr Rubicon - 1.0Gal | 6spd | 37s | 4.88s |
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
| OR-Fab cage | Poly Cage | BFH Front | XRC Rear | XRC12 Winch | Walker Evans Beadlocks |

Retired from the Jeep community, for now.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Goodysgotacuda is offline  
post #8 of 17 Old 04-08-2013, 06:30 PM
Wheeler
 
4LO PRO's Avatar
 
Join Date: Dec 2012
Location: Texas
Posts: 30
Feedback: 1 reviews

Not worth it to change it out yourself, did mine and broke a spark plug which left the broken piece into the block, luckily it did not drop into the cylinder hear.
Finally, I got it towed to a shop and the heat up the block and pull the broken spark plug from the engine block. Dude it cost like 60 bucks for someone to do it, and if they F it up..they fix it...dont forget the anti sieze.

ATX Slab Beadlocks
Trail Grapplers 37x12.5
Teraflex HD Tire Carrier
ProRock 44, RCVs, Arb'd
EVO MFG Spec King Front Coilovers
EVO MFG Spec King Rear Coilovers
EVO Rockstar Skids
EVO MFG Rock Sliders
PSC BFH Trail Stinger
PSC BFH Bumper
PSC Crusher Fenders
PSC Evap Skid
PSC Stamp
PSC Plate Delete
PSC 3rd Brake Litez
Aux Trans Cooler
Warn 9.5 CTI w/ Viking Line
4LO PRO is offline  
post #9 of 17 Old 04-08-2013, 06:58 PM
JKO Addict!
 
Goodysgotacuda's Avatar
 
Join Date: May 2009
Location: Denton, TX
Posts: 13,230
Feedback: 1 reviews

Quote:
Originally Posted by 4LO PRO View Post
Not worth it to change it out yourself, did mine and broke a spark plug which left the broken piece into the block, luckily it did not drop into the cylinder hear.
Finally, I got it towed to a shop and the heat up the block and pull the broken spark plug from the engine block. Dude it cost like 60 bucks for someone to do it, and if they F it up..they fix it...dont forget the anti sieze.
I've changed probably over 100 plugs without messing any up. I've watched people break them though...it's not a difficult job in a Wrangler, almost hard to screw up. A V12 BMW on the other hand...that's a different story.

SOLD - '09 2dr Rubicon - 1.0Gal | 6spd | 37s | 4.88s |
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
| OR-Fab cage | Poly Cage | BFH Front | XRC Rear | XRC12 Winch | Walker Evans Beadlocks |

Retired from the Jeep community, for now.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Goodysgotacuda is offline  
post #10 of 17 Old 04-08-2013, 08:20 PM
JKO Addict!
 
TCdawg's Avatar
 
Join Date: Jan 2011
Location: Woodstock, Ga
Age: 49
Posts: 3,717
Garage
Feedback: 2 reviews

Quote:
Originally Posted by 4LO PRO View Post
Not worth it to change it out yourself, did mine and broke a spark plug which left the broken piece into the block, luckily it did not drop into the cylinder hear.
Finally, I got it towed to a shop and the heat up the block and pull the broken spark plug from the engine block. Dude it cost like 60 bucks for someone to do it, and if they F it up..they fix it...dont forget the anti sieze.
How would the broken plug fall into the cylinder head? It's threaded into the head...

TC
Crawling For Reid March 23, 2019 Adventure OffRoad Park


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
TCdawg is offline  
post #11 of 17 Old 04-08-2013, 09:00 PM
Wheeler
 
4LO PRO's Avatar
 
Join Date: Dec 2012
Location: Texas
Posts: 30
Feedback: 1 reviews

Porcelain piece coulda dropped in the cylinder head, luckily I turned the engine on and the piece blew up and out. Shop just had to remove the metal thread casing, coulda been lot worse or a new hemi!

ATX Slab Beadlocks
Trail Grapplers 37x12.5
Teraflex HD Tire Carrier
ProRock 44, RCVs, Arb'd
EVO MFG Spec King Front Coilovers
EVO MFG Spec King Rear Coilovers
EVO Rockstar Skids
EVO MFG Rock Sliders
PSC BFH Trail Stinger
PSC BFH Bumper
PSC Crusher Fenders
PSC Evap Skid
PSC Stamp
PSC Plate Delete
PSC 3rd Brake Litez
Aux Trans Cooler
Warn 9.5 CTI w/ Viking Line
4LO PRO is offline  
post #12 of 17 Old 04-09-2013, 10:28 AM
Rock God
 
Join Date: Apr 2009
Location: Glendora, CA
Posts: 897
Feedback: 1 reviews

i replaced mine at 20K miles and it made a noticeable difference in performance. It felt like it had a little bit more pick up and smoother idle.
I used NGK Lazer Platinum

09' White JKU Rubicon with some stuff
Chris85xlt is offline  
post #13 of 17 Old 04-09-2013, 06:46 PM
Granite Guru
 
Join Date: Apr 2009
Location: N.W.O, Canada
Age: 45
Posts: 430
Feedback: 2 reviews

replaced mine last week after 115,000 kms some were gapped at .060 as the electrodes were pretty worn down

I took out the inner fender liner on the pass side and made the job go easier on the middle and rear most plugs

also I just replaced them with the same Champion ones from the factory

even with this many kms on them, they came out rather easy, although 2 were pretty tight, and the whole job was about 1/2 hour

Blacked out 07 JKUR, safari straps, Treadwright 35's on stock rims and Spydertrax spacers, stubbied front bumper, trimmed flares, 2" body lift, 2" spacers in front with 1" spacers in rear, Gen Right Tire carrier, more to come!
Badd Andy is offline  
post #14 of 17 Old 09-03-2013, 09:07 PM
Newbie
 
Join Date: Mar 2009
Location: south carolina
Posts: 3
Feedback: 0 reviews
Send a message via AIM to JeeperSC
Exclamation

I have been working on mine tonight. I was able to take the passenger side front two off pretty easy. All the others were on seriously tight. I had to get a 10in extention, plus two 3in extentions to extend the torque wrench far enough out of the engine bay so I could get enough leverage to twist them lose.

I still can't get the passenger side rear off. My knuckles are banged all to h*** and wrist is scratched all up from that one. I'll try again tomorrow. I think all I need is a swivle attachment. But like the others; its on so tight I am going to need lots of leverage to break it lose. Whoever put these things on at the factory sucks!

Also I used OEM Champion replacements.

Next time they should take no longer then 10 or 15 minutes to swap put since they will all be hand tight, especially the passenger side.

2008 Wrangler Unlimited-X 4x4
Steel Blue Metallic
JeeperSC is offline  
post #15 of 17 Old 09-04-2013, 04:12 PM
Mechanic
 
2008fx4's Avatar
 
Join Date: Dec 2010
Location: Tucson, AZ
Posts: 1,068
Feedback: 0 reviews

im screwed - i changed mine early due to a rough idle to ngks. turns out the middle one on the drivers side was cross threaded from the factory. took about 10 minutes to carefully thread the new plug in. not looking forward to pulling that one out. might just make the dealer do it when those start going bad.

Jon R.
Owner, Bullpen Garage
18 E Ventura St
Tucson, AZ 85705
520-396-3001
2008fx4 is offline  
post #16 of 17 Old 11-04-2013, 07:08 PM
Wheeler
 
bobwilson's Avatar
 
Join Date: Aug 2013
Location: Knoxville, TN
Posts: 12
Feedback: 0 reviews

I finished this operation a couple of weeks ago. My wires were very tight, but all let go eventually.

Driver's side was easy and didn't take long, but passenger side was another story. Just have to be patient. I used a soft knee thingy I've used in the yard on the bumper and pretty much layed on the radiator area. The engine was not hot so I reached down there to get an idea of the angle and where stuff was that I couldn't see. Then SLOWLY started the new plugs by hand. Once I felt them take the threads then I finished with ratchet.

I did pop off a hose from the left side of the intake if I remember correctly. Gave me some extra access. Came off easy and went back on easy.

I put anti-seize on all threads and that electrical grease on the top contacts. I intend to be doing this regularly and don't want to fight it every time.

Overall took some time but if you've done it on any newer car it's not that bad. I could probably do it in half the time next round.
bobwilson is offline  
post #17 of 17 Old 11-05-2013, 05:20 AM
Comfortably Numb
 
RubiCajun's Avatar
 
Join Date: Dec 2008
Location: Louisiana
Posts: 12,289
Garage
Feedback: 1 reviews

Unless I missed it, I haven't seen mentioned in this thread about the importance of blowing the spark plug base with air to remove any dirt or worse yet any buildup of mud from the mud rangers. Just sayin'.

08 Rubi Unlimited named Freebird

Quote:
Originally Posted by StubEXrube View Post
Cat killing would almost certainly decline if we were allowed to hunt liberals.
Asylum media group llc all rights reserved 2015
RubiCajun is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JKowners.com : Jeep Wrangler JK Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome