smoke coming out tailpipe of 1998 pontiac gtp

10

Asked by Nov 08, 2016 at 09:31 PM about the 1998 Pontiac Grand Prix

Question type: Maintenance & Repair

Smoke coming out of the tail pipe

4 Answers

46,115

What color is the smoke? White may means a bad head gasket. Black is running too rich and blue is oil.

1 out of 1 people think this is helpful.
10

I can't tell I think it's black or blue

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46,115

I would guess that your engine is burning oil. How is the oil consumption? How many miles on the engine?

2 out of 2 people think this is helpful.
60,845

Black is a rich air/fuel mixture (too much gasoline), blue is burning oil. White billowing "smoke" is water (coolant) and, on this engine will be a failed intake manifold gasket. The 3.8 rarely, if ever, will blow a head gasket. HTH. -Jim

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