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I have a stock 2002 powerstroke. The vehicle has always blew large amounts of white smoke since I go it on startup. Recently it started pushing coolant out of the coolant resevior. I know this is usualy a head gasket, butthe truck does not and has not overheated. And the pressure comming out of the bottle is admazing. I know these engines have a coolant based egr valve, could ths have cracked allow exhaust to be in the coolant system and antifreeze in the exhaust causing the white smoke. The truck runs great and I didn't know if there was a way i could disconnect the coolant line to the egr and test to see if it pushes coolant. thanks for the help.
 

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White smoke = burning coolant = bhg
Over-pressurized coolant system = bhg

Sure does look like a blown HG. And it hasn't over-heated...yet.... on the Ford gauge. I bet if you had an engine temp gauge, it would show you that you've gotten awfully close to being on the side of the road.
 
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