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1997 f150 4.6 overheating
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07-01-2011, 08:14 PM
70f100longbed
Fleet Mechanic
Join Date: Aug 2002
Location: Raleigh USA
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Sounds like a bad head gasket allowing compression to get into the cooling system. Start with a cold engine and put a pressure tester on then run the engine. If it starts building pressure before the tstat opens then the head gasket is bad.
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