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!


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