New to the forum here and I've seen a few similar posts on this issue but not exactly what I'm experiencing. While running at speed (35~75mph) I've been experiencing a stutter, like the car is missing. Example is while running 60mph flat acceleration I feel the stutter, when I accelerate from 60 or any other speed the stuttering usually subsides. Due to my commute I usually notice it around 50~60mpg on flat roads or slightly inclined either way. Of course the problem went away when I took it to the dealer yesterday and I even test drove it with the tech and didn't occur all day. This morning we're back to stuttering again. No check engine light. New plugs. Problem was happening before the new plugs and after the new plugs. Feels like ignition to me but I hate to start shotgunning parts but I'm nearly there.

ANY help or advice is appreciated. I'm open to nearly anything, this is my daily driver and I can't afford to be stranded.

 

I remember having a similar issue along with hesitation and stuttering from a dead stop. A coil pack replacement fixed that problem, but the stuttering at take off recurred. Some people report re-gaping plugs to a smaller gap solved their problem, but new plugs should not be necessary. The stock iridium plugs will go a zillion miles, well over 100k.