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Valve seals/guides, plugged oil drain holes in the head, PCV valve/line plugged/malfunctioning, etc. IF its WHITE it could b a blown head gasket-IF its BLACK it means there is 2 much FUEL getting 2 the engine & if its BLUE it COULD b valve stem seals OR piston rings or @ the WILDEST blocked oil return holes.

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2005-01-17 06:00:10
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Q: Why does smoke billow out of the exhaust when you start a 91 Firebird Formula?
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Related questions

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The word 'billow' functions as both a verb and a noun.Examples:We watched the clouds billow in the breeze. (verb)A billow of smoke from the campfire enveloped the campers. (noun)

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