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2005 4.6 gas in oil

Old 09-30-2016, 01:03 AM
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Default 2005 4.6 gas in oil

4.6 323,000 miles found gas in oil after changing coil and plug in cylinder 5 ivelooked everywhere and can't find a reason please any advice would be helpful.

Last edited by rwalker689; 09-30-2016 at 01:08 AM.
Old 09-30-2016, 07:08 AM
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My guess....leaky piston ring...or issue with an injector.
Old 09-30-2016, 08:28 AM
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Default 2005 4.6 gas in oil

Yeah that's what I was thinking but I just don't get how it would happen after changing plug
Old 09-30-2016, 08:29 AM
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Probably just coincidental. Maybe. Why did you change the plug?
Old 09-30-2016, 09:05 AM
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Default 2005 4.6 gas in oil

It was misfiring pretty bad
Old 09-30-2016, 10:04 AM
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Leaking injector most likely.
Old 09-30-2016, 10:06 AM
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Default 2005 4.6 gas in oil

How would I diagnose a leaky injector
Old 09-30-2016, 10:06 AM
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Agreed. Best check the injectors. Watch the fuel pressure when you kill the engine. It'll drop a little, but should stop. If it keeps dropping... you get the idea.
Old 09-30-2016, 11:21 AM
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Default 2005 4.6 gas in oil

Thanks guys appreciate the help I'll check the pressure.


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