Changed my spark plugs. Found something.
01-18-2015, 05:42 PM
#1
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Changed my spark plugs. Found something.
I found this on plug number 8. Anyone have a idea what could cause number 8 to do that? The only thing i noticed was a little knock every now and than. The truck is stock except for intake and tune. All the other plugs look normal. I'm pretty sure that they are the original plugs.
01-18-2015, 05:48 PM
#2
Looks like oil being burned, would be worse if coolant was being burned. That will cake a plug and be all white if coolant.
Nothing to really worry about in my eyes yet as it's common for dod 5.3's to burn a little oil. And you didnt say mileage on the truck but I'd guess at over 50-75k miles and thats the time I'd switch plugs out.
Nothing to really worry about in my eyes yet as it's common for dod 5.3's to burn a little oil. And you didnt say mileage on the truck but I'd guess at over 50-75k miles and thats the time I'd switch plugs out.
01-18-2015, 06:14 PM
#4
Staging Lane
I noticed the similar results, although not as bad on my old 09 Sierra 5.3, it is from the AFM and pcv system. I'd disable AFM and install an oil catch can to avoid it again.
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