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2004 Chevy Silverado 2500 random light misfire at idle, P0300

  • brianmstoltzfus
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1 year 1 month ago #67001 by brianmstoltzfus
2004 Chevy Silverado 2500 random light misfire at idle, P0300 was created by brianmstoltzfus
Hi, this Silverado was brought in with a P0300 code. It misfires very lightly at idle only, runs strong at higher speeds and loads. Cyl 7 shows double the number of misfires in history but all cylinders show some misfires. Fuel trims are under 5% deviation from 0 at idle and while driving. Spark plug tip was colored white when removed to check. Primary ignition scope pattern looks good. Injector balance rates tested good. Relative compression looks good. Injector current pattern looks normal as near as I can tell. I do hear a very slight ticking in the engine but I cannot pinpoint where it's coming from. Does anyone have good advice on what direction to go?

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