Thread: 2003 Denali Runs Rough at 55 mph and 1500 RPM
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Old 01-16-2007, 01:39 PM
maxwedge maxwedge is offline
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Re: 2003 Denali Runs Rough at 55 mph and 1500 RPM
Typical misfire symptoms usually caused by plugs, wires or a dirty/bad injector.
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