General engine questions/issues that aren't specific to the other categories
User avatar
By suspendedHatch
#62887 Most likely the head gasket, but to answer your question, the FITV has coolant exposed to air. I know because if you bypass the FITV, you have to plug it or it causes a vacuum leak. So at some point the coolant itself is sealing the air in.

:?
User avatar
By Greasedmonkey
#62895 how do you by pass it and plug it. I dont really think I need it here in texas.