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Old 11-25-2009, 08:15 PM   #1
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Question oil in spark plug

So I did my spark plugs on the 5.4 and when I took the 4th one out it was full of oil, what could be the problem?
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Old 11-25-2009, 08:48 PM   #2
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The only time i have seen oil in the spark plug wells is that someone has spilled oil while filling the crankcase.. the oil will run between the valve cover and the intake if the plug boot does not seal well it will run into the well of the spark plug.. other then that there is no oil in that area the intake only runs coolant
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Old 12-03-2009, 12:15 AM   #3
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its possible for the valve cover to leak oil down into the plug wells.... may be the issue here...
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