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Author Topic: Engine oil found on spark plug  (Read 1666 times)

Offline vag12

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Engine oil found on spark plug
« on: March 20, 2014, 12:24:43 pm »
Last night I was having bad misfires so took it to garage this morning to change plugs, but frm cylinder 3 the plug had oil at the bottom of it? What can this mean and also since changing plugs I have white smoke coming out of my exhaust? Any idea what it could be?
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Offline martin@gti.co.uk

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Re: Engine oil found on spark plug
« Reply #1 on: March 20, 2014, 10:43:19 pm »
Most likely PCV valve..common issue, or valve cover gasket...
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Offline vag12

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Re: Engine oil found on spark plug
« Reply #2 on: March 21, 2014, 10:39:54 am »
PCV is blanked of so out of question, valve cover gasket was changed yesterday still the same
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Offline martin@gti.co.uk

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Re: Engine oil found on spark plug
« Reply #3 on: March 21, 2014, 11:16:01 am »
Ok..so white smoke indicates that the coolant is beign burned...might be tge head gasket.. try compression test..
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Offline omeydz

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Re: Engine oil found on spark plug
« Reply #4 on: March 21, 2014, 11:16:33 am »
Was it just oil or was the plug very sooty too? If so might check fuel injectors too.
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Offline sean140

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Re: Engine oil found on spark plug
« Reply #5 on: March 21, 2014, 11:27:18 am »
Not sure if it's the same, But on my TSI engine, i had the exact same & i needed to have the gasket seal re done.

Apparently on a TSI it wasn't that straightforward to done and half the engine had to be took apart.  :signLOL:
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Offline OSB

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Re: Engine oil found on spark plug
« Reply #6 on: March 21, 2014, 05:46:36 pm »
White smoke tends to mean water getting into the cylinder - could be head gasket.
Blue smoke tends to be oil burning off.

If you have white smoke and oil on the plug, it points to a head gasket failure.
I hope not but best to get it checked.
Have you got oil in the coolant water? It might only appear as a trace on the surface.
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