Coolant is boiling in expansion tank ran it this morning and when car is hot the bottom radiator hose is cold coolant is boiling in expansion tank I had the cap off and still boils and it purges out the top. It does not have a coolant leak, it will set there add idle and the needle on temperature gauge stays at below normal and all at once it will go up.
Oct 8, 2015 at 11:35 AM
