K2500 7.4L MISFIRE

2012 Chevrolet Truck

Tiny

leed24

September, 5, 2007 AT 11:15 AM

2000 K2500 4x4 7.4L 454. Trouble code shows misfire on #4 cylinder. I have replaced the cap, rotor, wires, plugs, and fuel filter. Still a misfire. Hesitates during acceleration, no power at speed. Seems to run (ok) when cold, gets worse as engine comes to op temp. Could it be in the distributor? ECM? Coil?

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Engine Miss

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