Question about 2003 Chevrolet Avalanche

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Engine light comes on, mostly when accelerating,

The engine light comes on, mostly when accelerating, and the car shakes when driven. What is the likely problem?

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It sounds like its missfiring badly the red light that comes on is the charging light this will light if the engine is ticking over very slowy the car need a good service,, and it will run ok after that

Posted on Nov 15, 2009

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shaking?
that means the engine stalled.
when the engine stalls. (do a tune up)
as the engine misfires, grossly , the 4 cyl . engine will shake.
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