Upper Intake failure
 

Sorry if this has been beat to death, but i cant find any more info on this.

I have a 1998 Bonneville with 130,000 miles that is leaking antifreeze into the engine and out the exhaust. The car will run, but alot of white smoke comes out the exhaust.

I have read where the upper intake can fail and cause antifreeze to leak into the cyclinders.

Is it possible that this will get into the engine oil as well?

If I replace the upper intake, should I go ahead and replace the lower intake gaskets at the same time the upper is off?

Thanks in advance.

What you have is a blown head gasket.:(