Question about 1987 Ford Ranger

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It smokes then clears up then smokes again could it be a sensor??

When first started it smokes but then when you drive it, it stops but then when sits at an idle it smokes again

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  • Ford Master
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Check for worn valve guides & seals. Make sure PCV is functioning as well, but it sounds like guides worn.

Posted on Oct 08, 2009

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Posted on Jan 02, 2017

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Smoke problem


hey
there are couple of smoke type.blue smoke is oil, black smoke is fuel, and white smoke is water, if it clears after starting and running a few minutes it's probably your valve guide seals leaking oil down on top of your pistons, causing it to smoke until burned off and foul your plugs.

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