Question about 2001 Chevrolet Silverado 2500HD

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I have a 2001 Chevy 3500. Sometimes when I drive it white/grey smoke comes out the exhaust. Other times it drives normal. Any help

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Sounds like you have an injector going out it usually starts dumping excess fuel on occasion causing excessive smoke you will have to have it diagnosed to pinpoint the cylinder causing the issue

Posted on Nov 12, 2010

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