P0300, P0307 Reveal Broken Valve Spring

From : kenny

Q: this is just a fyi if it can help someone. 2003 ram 1500 hemi 5.7l qc 2wd 48000 miles vehicle died in traffic last week. attempts to restart resulted in loud banging sound and badly misfiring engine. codes shown were p0300 & p0307 broken valve spring nr 7 cylinder a $2.70 part. chrysler-damar claims there have been only *isolated* instances of this happening with early production 2003 5.7l hemi enginens. fortunately the 7/70 was applicable in my particular case. my understanding is that 2006 models are no longer covered by a free 7/70 warranty. .