Originally Posted by A34
Hey guys,

My 2004, 5.7 is running rough and has a random misfire code. Initially I changed plugs and EGR valve as it was time for those, thinking that was it. It didn't fix the rough running and now the engine is making a popping sound from the exhaust when driving and not accelerating. It goes away on acceleration. Any ideas what that might be and how to diagnose it?

Thanks!


My 2016 Challenger Scat Pack did this a few weeks ago out of the blue - check engine light came on after a little while. I took it to a shop that scanned it & the code was showing "multiple misfire" - then he cleared the code & it has not done this again since.


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