Was doin some engine bay cleaning and had took off my throttle body to clean it too when I had noticed a small amount of oil sittn in the bottom of my intake manifold...
Is this normal or should I be concerned? Also should I take it off as well and clean it out?
I have this aswell, I was told 2 different reasons for this.. perhaps some slight blow by and the oil acumlation over time.. or a certain valve that gums up and causes this oil to collect.. someone here may know more.. I have a ecotec with 200,000kms and good compression on my engine, so this gummed up valve could be the issue.
