2004 hemi 5.7 misfire

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ModifiedMCS

09-26-2007, 06:31 PM

Got code p0300 and p0303 multiple random misfire and cyl #3 misfire. Sparkplugs are Champion gapped at .045". Has anyone ran into this problem? Fuel injectors are firing when they're suppose to.

hundahunta

09-27-2007, 11:16 PM

check compression, possible broken valve spring.

corning_d3

10-02-2007, 10:35 PM

Yep, I've seen the broken valve spring problem. Mopar has an updated set of springs.

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