Jeep Garage  - Jeep Forum

Jeep Garage - Jeep Forum (http://www.jeepgarage.org/forums.php)
-   Engine Performance/Intake/Exhaust (http://www.jeepgarage.org/f183/)
-   -   Spark plug change? (http://www.jeepgarage.org/f183/spark-plug-change-46136.html)

vinnie2001 08-15-2012 10:20 AM

Spark plug change?
 
Hi all,
I am considering replacing spark plugs (original) on my 06 4.7 w/80K miles. I know they are WAY overdue but itís running fine and MPGs are ~17.5 with exhaust/tuner and air mods. My question is... should I?? And if so any advice on spark plug type/brand and tips on removal?
thanks!

4.7ho 08-15-2012 10:43 AM

Re: Spark plug change?
 
Yup they're due at 30,000 mile intervals and use champion copper core plugs gapped to .040

http://www.wkjeeps.com/wk_sparkplugs.htm
http://www.wkjeeps.com/wk_maintenance.htm#SPARK

SvenskaJeepGuy 08-15-2012 11:43 AM

Re: Spark plug change?
 
yes they need to be changed and only use stock champion plugs

vinnie2001 08-18-2012 01:29 PM

Re: Spark plug change?
 
1 Attachment(s)
Thanks guys!!

Spark Plugs out of a 2006 4.7 WK W/80K:eek:

Duff Daddy 08-18-2012 01:53 PM

Re: Spark plug change?
 
Be happy you dont own a late model 4.7 with 16 plugs... the bottom 8 suck to change

4.7ho 08-18-2012 02:28 PM

Re: Spark plug change?
 
Quote:

Originally Posted by vinnie2001 (Post 672191)
Thanks guys!!

Spark Plugs out of a 2006 4.7 WK W/80K:eek:

Just a hunch but my guess is your going to notice a slight difference after changing those plugs out.

Kayak83 08-22-2012 11:57 AM

Re: Spark plug change?
 
Sparkplugs.com has the RC12MCC4 plugs for $2.89/each. $34 total shipped to my door. Seems like a good deal. These are the correct ones, right?

http://www.sparkplugs.com/more_info.asp?AAIA=&pid=8866

2005JGC 08-23-2012 12:35 AM

Re: Spark plug change?
 
Quote:

Originally Posted by Duff Daddy (Post 672200)
Be happy you dont own a late model 4.7 with 16 plugs... the bottom 8 suck to change

Yes they do suck, BUT they are a 100k iridium (iirc) plug by the exhaust. So its really not that bad.

Duff Daddy 08-23-2012 07:25 PM

Re: Spark plug change?
 
Quote:

Originally Posted by 2005JGC (Post 674137)
Yes they do suck, BUT they are a 100k iridium (iirc) plug by the exhaust. So its really not that bad.

I tihnk they are 45k vertical and 90k horizontal .... I would have to look on tech connect later....

hmmmm16417 08-23-2012 07:40 PM

Re: Spark plug change?
 
2 Attachment(s)
rockauto.com has the same plugs for $1.79 each, cheap shipping too (click on pic (skinny one on left) below)

after reading the posts about plugs, I realized that I have almost 80k miles and i have NEVER changed mine :-o

so I did today, here are my old ones


All times are GMT -5. The time now is 07:16 AM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community