hi folks. i have a 2012 jk 6 speed manuali bought this past march. about a month after i got it i would very randomly, and not real often, have a sort of split second hesitation followed by take off while accelerating. it usually only happened when accelerating to get up to speed from a stop or when merging. over the summer i have replaced the spark plugs and coil packs, then the fuel injectors, and finally the fuel pump thinkng it was one of these. i still have the issue but its not a hesitation anymore but almost feels like something catches and there is a jerking. anyone heard of this?