Overheating and fed up....

[Mike..Yorba Linda]

The strange thing Ted is it kept at 180* in 90* heat until 2 years ago. Then started overheating. The water does come out the overflow and this is a brand new core better than the one Ford put there....I need to find the cause and fix that instead of adding additional measures that will bring the temp down.....I don't see any symptoms of any cracks...