2003 Gmc Danali

By 1fireman35
June 1, 2010 in Ask A GM Technician

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1fireman35

Posted June 1, 2010

Hi could you help me on this ? I have a 2003 danali 6.0 with a flashing engine light i am getting a code P0300 only and i changed plugs and wires and still no difference could it be an injector or coil pack problem,or a plugged cat.or a EGR problem?I only get the P0300 code and it reads random misfire but not one certain cylinder.

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