I have a 1999 cherokee sport . First start up in the morning runs fine, but after that any time I go some where it starts right up but when I go to drive before it gets into 2nd it boogs down or hesitates I give it gas or through it in nuetral and then it runs fine it won't do it again until I shut it off and start it again. I have new plugs, wires, distributor cap, rotor ,throttle position sensor cleaned the idle air valve. It idles and runs perectly smooth except for the above problem. Has anyone got any idea what could be causing this. This is a 4.0 with automatic trans.

my 96 does the same thing, im still trying to figure out why myself. have figured it out yet. it cant be a 2door thing can it?

i got a 91 that dose the same thing what helped me was i rigged the intake for higher flow and i adjusted the transmition kickdown cable try ajusting the cable 1st usualy they strech a little but pull tords the driver side about 1/16-1/8 inch just keep adusting till u find the right spot if it acts like its having a hard time getting rolling after that just back it out lil by lil and it should smooth out pluse u get better takeoff power too