spark plugs 99 gc - JeepForum.com

 
LinkBack Thread Tools
post #1 of 8 Old 12-14-2008, 02:54 PM Thread Starter
tattoocharger
Registered User
1999 WJ 
 
Join Date: Aug 2008
Location: washington
Posts: 13
spark plugs 99 gc

is there a write up with pictures somewhere???? always used to vehicles with spark plug wires, not used to this newfangled crap

tattoocharger is offline  
Sponsored Links
Advertisement
 
post #2 of 8 Old 12-14-2008, 03:11 PM
Kruzin
Web Wheeler
 
Kruzin's Avatar
2009 JK Wrangler 
 
Join Date: Aug 2007
Location: Lakewood
Posts: 3,310
Plugs are the same as they've always been....just have coil packs on em now.
Grab the CP, yank em off, there's yer plugs....

'09 Rubicon
Kruzin is offline  
post #3 of 8 Old 12-14-2008, 06:45 PM
cmonson
Registered User
 
Join Date: Nov 2006
Location: Columbus
Posts: 1,546
Coil packed plugs are even easier to change (no wires to deal with). Cheaper as well, as most of the time the coil packs last forever (knock on wood) and you don't have to replace wires as part of a tuneup.
cmonson is offline  
post #4 of 8 Old 12-14-2008, 07:43 PM
txtumbleweed
Registered User
2000 WJ 
 
Join Date: Jan 2006
Posts: 332
Read All About It - And Bookmark the HomePage

http://www.wjjeeps.com/service/sparkplugs.htm

Y2K WJ 4.7
txtumbleweed is offline  
post #5 of 8 Old 12-14-2008, 08:07 PM
mailforjon
Registered User
 
mailforjon's Avatar
2005 WK 
 
Join Date: Oct 2005
Location: Boston
Posts: 997
Quote:
Originally Posted by cmonson View Post
Coil packed plugs are even easier to change (no wires to deal with). Cheaper as well, as most of the time the coil packs last forever (knock on wood) and you don't have to replace wires as part of a tuneup.
the coil packs and plugs on the 4.7 are a nightmare to replace. especially on the rear passenger side. they might be considered "cheaper" if you buy the generic packs at autozone or where ever, but i think they are about $40-$50/each if you get a genuine mopar coil pack. multiple that by 8, and thats quite a bit more than any set of premium wires ive ever bought.

regardless, if you are swapping out plugs/packs, be very careful pulling the coil packs out. when i replaced mine at 115k (and im not sure if they had ever been done before that), they were seized in the cavities pretty badly. i ended up accidentally cracking the bottom part that surrounds the spark plug on several of them. this process was even more tedious on the rear passenger side.


-2005 WK 5.7 Limited [DD]
-1999 WJ 4.7 Limited [SOLD]
-1998 ZJ 5.9 Limited [SOLD]
-1996 ZJ 5.2 Laredo [SOLD]
-1994 ZJ 4.0 Laredo [SOLD]
-1993 XJ 2.5 [SOLD]
mailforjon is offline  
post #6 of 8 Old 12-14-2008, 10:03 PM
20jeepwj00
Registered User
2000 WJ 
 
Join Date: Oct 2008
Location: east haven ct
Posts: 44
To change the 4.7 plugs,remove the air intake at the throttle body,remove the 10mm bolt holding the oil dipstick tube and bend it slightly out of the way,using a screw driver lightly push down on the locking tab on all the coil pack connectors and pull them off,remove the 10mm bolts on each coil pack and pull up on the coil to remove it,ive found the easiest way to remove the plugs is with a 5/8 swivel plug sock and and extension,the rear on the pass side is a little tircky,but everything usually comes apart without problem.
20jeepwj00 is offline  
post #7 of 8 Old 12-15-2008, 11:33 AM
cmonson
Registered User
 
Join Date: Nov 2006
Location: Columbus
Posts: 1,546
The I6 is very easy to change and all plugs are very easily reached. The V8 is a different story.
cmonson is offline  
post #8 of 8 Old 12-15-2008, 11:50 AM
JG_Canuck
Registered User
2000 WJ 
 
Join Date: Mar 2007
Location: Kitchener, ON Canada
Posts: 1,213
^on the 4.7L, the rear plug on the passenger side is the only one that presents any "difficulty". All the rest are very easy to get to.

Canadian Jeep Club Member Forty-Two
JG_Canuck is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com 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 e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Which Spark Plugs to run...???? 1badjk WK Grand Cherokee & XK Commander Forum 14 09-26-2009 10:15 AM
spark @ coil, no spark @ plugs 94GC52 ZJ Grand Cherokee Forum 4 07-09-2009 06:17 PM
WJ Spark Plugs FlipFlop425 ZJ Grand Cherokee Forum 19 10-14-2007 06:11 PM
Spark plugs??? Diehard ZJ Grand Cherokee Forum 16 07-25-2006 09:03 PM
Spark Plugs Othoni ZJ Grand Cherokee Forum 4 04-24-2005 09:12 PM

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 Off
Pingbacks are On
Refbacks are On

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