Just took the valve covers off our 04 5.3 with 100k miles. Was surprised with with I saw. It literally looks like snot underneath the valve covers. But is not on the springs, pushrods, etc.

What in the world could be the problem? Is it a blown headgasket? Is this normal? There also was no water in the oil which really confused me.

Thanks!

 

Yummy

 

Do you live in an area where the temps have already gotten colder? I know that it looks nasty, but it may be normal condensation that has not burned off due to the oil not getting up to temps high enough to burn it off. I get yoo-hoo like that in my catch can every fall and winter...

 

condensation, get your motor hot and then take them off..

 

looks like that motor had some quakerstate oil in it at one time

 

What kind of oil were you running and at what intervals?

Supadaddy, I've never seen quakerstate do that to the inside of an engine. Ever

 

castrol 10w30 bout 5000 miles

 

Don't know dude, but looks terrible.

 

looks like somebody puked all over your covers

 

pretty common on vehicles with short drive to work in cool weather