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help! 2003 denali missing and evap issues
having issues and woundering if any one has had this issue. check engine light came on, ran fine, 2 days later it started stumbling and missing bad. has new plugs, wires and a couple coil packs. the reader said multiple cyl mis fire on 2 5 and 6 (5 6 being the worst) and evap system problems...
