I have a 2011 Ram Sport 5.7 with around 90k. About once a month when I start the engine it will start but has a severe missing. It will always go away if I either shut off the engine and restart or push on accelerator. It has me puzzles what could be causing it. I have replaced plugs but not coil packs. Runs great other than this issue. I wondering if I just let off the ignition key to soon?? Any ideas? Thanks.

 

Any check engine light? Any error codes? I would be thinking a sticky fuel injector possibly?? Ignition key and letting off to soon will not be suspect

 

Nothing, no error codes, no check engine light. nothing. it is weird.

 

I would try to start it in the dark and look for sparks by the ignition wires, from either breaks in the wire itself or maybe moisture on the wires.

 

Even though it runs completely fine other than the random starting issue I mentioned? Thanks

 

the HEMI is Coil on Plug, there are no traditional spark plug wires to check for arcing/sparks from. . . . and the 12v(max) signal/supply wires in the harness wouldnt be sparking unless they were touching, which would be a more consistent problem

 

any ideas? Letting off the ignition key to soon wouldnt cause this? It only happens about once every couple months.

 

How does the timing fit in with fueling up the truck?