Engine misfires esp when it's cold. This is daily. I've had it checked at the dealership stated they didn't find what is wrong except a misfire.
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2002 Chevrolet Tahoe Question: why does Service engine light come on flash, sometime it stays on?
Answer #1G. T. Service Center (4142 Answers) , Stephenville, TX - (254) 638-3236ProfessorG February 11, 2014, 10:53Master
Have the upper induction service done to clear the carbon.
Answer #2pushrod February 11, 2014, 15:00Master
Have seen these with vacuum leak at intake manifold gaskets,, until engine warms up! Manifold expanison.