why white smoke cum from out of muffer

Asked by Feb 01, 2007 at 01:36 PM about the 1995 Chevrolet Blazer

Question type: Maintenance & Repair

why white cum from tailpipe when start truck

3 Answers

21,580

That usually means oil or coolant is involved in the combustion somewhere if it doesn't go away when the engine is warm. The usual source is misfiring due to a foiled or malfunctioning spark plug in one or more cylinders. That's best case scenario. The worst case scenario is a head problem or head gasket problem that may be allowing oil and/or coolant into the cylinders. Get it checked by a pro ... Good luck

1 out of 1 people think this is helpful.
21,580

Hi Pelegrin! Generally if this continues after the engine is warm it's the result of oil and/or coolant in the cylinder. The good-news end of the scale here is that one or more spark plugs is fouled (dirty, failing, cracked) and the mixture in that cylinder isn't being burned properly. That's two bucks per plug and a few minutes in the back yard. The bad-news end of the scale could be a problem with the head and/or the head gasket which is allowing coolant into the cylinder. You need to have it checked out by a pro. Good luck!

1 out of 1 people think this is helpful.
25

Also, tell them to check the Intake manifold gaskets.

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