Chevrolet Cruze Forums banner

High levels of oil on cylinder heads

652 Views 5 Replies 2 Participants Last post by  Johnny B
Eye Human body Fluid Amber Automotive tire

Hey, so there seems to me too much oil on cylinder heads. It's to the point where it's starting to drench the spark plugs. Any recommendations?? Have a picture if text doesn't make sense
See less See more
1 - 3 of 6 Posts
Do you mean the spark plug wells are filling with oil?
The good news is the oil in the spark plug well is from a bad valve cover gasket. This is an easy fix, just replace the valve cover.

I'd assume the oil on the alternator is from the crank shaft seal. The crank shaft seal usually lasts forever unless the PCV system fails or the motor oil isn't changed.
The knock could be from the engine running to lean. I would say a bad front O2 sensor might be the cause.
1 - 3 of 6 Posts