Hey guys need some help figuring out what is goin on when i start my jeep? Only does it until it gets warmed up completely, it hesitates and you have to feather the gas pedal to get it to go eventually having to basically hammer it to clean it out or something like that. Motor is completely stock with new plugs and wires, distributor just the basic tune up stuff, it also pops like it is having a detination in the manifold at this same time of hesitation. Any and all suggestions would help guys Thanks,