Just an FYI here folks, change that rad cap from time to time, mine is less than 3 years old and was overflowing the overflow reservoir big time when you shut her down. For a meger 20 frickin BUCKS from Ford(Shannohan sorry Ed was in a pinch), you too can be the proud owner of a genuine Motorcraft 16lb rad cap...LOL. Hey it worked and the Ford ones work very well unlike some of the CTC ones various members of us have tried.