Sludge on spark plug

[hiru]

So yesterday I am pulling out of my driveway in my 2006 3.2 and i get the dredded epc light with the cel flashing.

I ran the OBD2 and got the P0305 code (cylinder 5 misfire detected)

I pulled the cyl 5 plug and found it was covered in sludge.

any ideas for the cause of this? I am thinking valve stem seal?

The plugs in the other cylinders were fine.

[Saifxnyc]

Your valve cover gasket could be leaking into the spark plugs I replaced mines haven't had any issues.


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[hiru]

will have to get my mechanic to look into the gasket ... I popped a new spark plug in and all is good again ... so far