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1997 - 2003 F-150

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Old 03-10-2017, 02:42 AM
Wayneoo's Avatar
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Sooomeeebooiddyyyy
97' 4.2L 5speed. Put 99' auto motor in my 97' white smoke with gassy smell won't go away. I've put diagnosis test on it. Changed all sensors that it said were out. Still same result. Would computer be different? ?
 
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Old 03-10-2017, 09:36 AM
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White smoke out of the exhaust usually means water is getting into the combustion chamber. Most likely cause is head gasket failure.
 
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Old 03-10-2017, 12:25 PM
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What caused the failure on the original engine?
 
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