Question about 1991 Buick Century
If black smoke then it can be excess fuel and might need a retuning of the engine. If the smoke is bluish then check on the oil consumption of the engine. It will be due to poor oil rings/compression rings that allow the oil to seep through.
so in both cases the smoke is not a healthy sign of the engine and needs attention.
Posted on Sep 14, 2010
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Posted on Jan 02, 2017
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