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Ford Raptor Problems and Questions Forum
Gray smoke from exhaust Gen 1
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<blockquote data-quote="Ruger" data-source="post: 1727080" data-attributes="member: 1594"><p>White smoke means water in the combustion chamber, and that means a head gasket failure. White = steam. The pressure in the cooling system far exceeds that elsewhere in the engine, so that pressure forces coolant to go where it's not supposed to. [USER=49121]@MurderedOutSVT[/USER] suggests you pop the oil cap and assess the condition of the oil. I'd do that. I think that will be most revealing when the engine is hot. You might ask for a test drive, and then do that under the hood. I'd take along a pistol or rifle cleaning rod with a small bit of clean rag on the end.</p><p></p><p>That (above) is the traditional pre-magic-coolant, polyethylene glycol era. I have no idea what color smoke the new orange coolant produces. [USER=35543]@FordTechOne[/USER] probably knows.</p><p></p><p>Blue smoke - and this is true whether it's dyno juice or synthetic oil - indicates the engine is burning oil. That indicates a likely valve guide/valve seal problem, and less likely a piston ring problem. With only 28K on the clock, this seems unlikely unless the engine has been run low on oil or otherwise abused. I think that a compression test on each of the cylinders will reveal if this is the problem, but again this possibility seems unlikely given the relatively low mileage. I have almost 94,000 miles on my 2011 and it makes no smoke.</p><p></p><p>A head gasket replacement is less expensive than an engine rebuild. If this engine needs anything beyond a head gasket, I wouldn't make the purchase. Personally, I am adverse to spending my hard-earned money to buy somebody else's problem.</p></blockquote><p></p>
[QUOTE="Ruger, post: 1727080, member: 1594"] White smoke means water in the combustion chamber, and that means a head gasket failure. White = steam. The pressure in the cooling system far exceeds that elsewhere in the engine, so that pressure forces coolant to go where it's not supposed to. [USER=49121]@MurderedOutSVT[/USER] suggests you pop the oil cap and assess the condition of the oil. I'd do that. I think that will be most revealing when the engine is hot. You might ask for a test drive, and then do that under the hood. I'd take along a pistol or rifle cleaning rod with a small bit of clean rag on the end. That (above) is the traditional pre-magic-coolant, polyethylene glycol era. I have no idea what color smoke the new orange coolant produces. [USER=35543]@FordTechOne[/USER] probably knows. Blue smoke - and this is true whether it's dyno juice or synthetic oil - indicates the engine is burning oil. That indicates a likely valve guide/valve seal problem, and less likely a piston ring problem. With only 28K on the clock, this seems unlikely unless the engine has been run low on oil or otherwise abused. I think that a compression test on each of the cylinders will reveal if this is the problem, but again this possibility seems unlikely given the relatively low mileage. I have almost 94,000 miles on my 2011 and it makes no smoke. A head gasket replacement is less expensive than an engine rebuild. If this engine needs anything beyond a head gasket, I wouldn't make the purchase. Personally, I am adverse to spending my hard-earned money to buy somebody else's problem. [/QUOTE]
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Gray smoke from exhaust Gen 1
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