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White smoke rough idle loss of power - F-250 Ford Cars & Trucks

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You're probably seeing the first signs of injector stiction. The truck hates cold weather but runs great after it warms up, anything under 55F is hit or miss. The cause is oil buildup in the spool valves of the injectors causing poor timing and misfire when cold. One thing you can do is run a good 5w-40 synthetic oil which will flow better when cold.

I think it would be injectors or something along those lines.

Either way, white smoke (not just white or clear steam) usually means burning or burnt oil. Check engine seals and manifold gaskets - or maybe worn piston rings.

Hope helped.

Posted on Nov 18, 2009


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