Spark Plug Question

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Feb 25, 2013 | 10:32 AM

#11

iMuf

Thread Starter

Joined: Jan 2013

Posts: 872

Quote:

Originally Posted by ChibiBlackSheep

Remember my post gave a year range. Stuff does go bad over time, not just over mileage. Iridium is supposed to be good for 7 years, and you are at the 7 year mark.

I got you, I may pull them out and just have a look.

Feb 25, 2013 | 07:47 PM

#12

farmerjg

Joined: Jun 2010

Posts: 174

Slight hijack here. How do bad plugs manifest themselves? I'm at 9 years and 120k miles and am yet to know if I have a problem, unless I really do and don't know it.

Heck, my 92 F150 with 125k miles still has original copper plugs.

Feb 25, 2013 | 08:09 PM

#13

sixscarlo

Joined: Feb 2012

Posts: 113

The factory plugs are ac delco iridium. gap them to .06 an inch. They run about 7 bucks a plug at auto zone.

Feb 26, 2013 | 09:25 AM

#14

ChibiBlackSheep

Monte Of The Month -- August 2014

Joined: Sep 2008

Posts: 25,145

From: Southeast PA

Bad plugs start to break/lose their elements on the plug. The plug could also gather deposits on it and no longer spark as hot as it should to detonate the fuel properly.

Copper plugs should be changed very frequently, like every 10k miles haha

Feb 26, 2013 | 11:26 AM

#15

STUMPMI

Monte Of The Month -- February 2013

iTrader: (1)

Joined: Dec 2011

Posts: 9,944

From: Taylor Michigan

Quote:

Originally Posted by ChibiBlackSheep

Remember my post gave a year range. Stuff does go bad over time, not just over mileage. Iridium is supposed to be good for 7 years, and you are at the 7 year mark.