sup guys just joined ur site.. anyways i have a 2000 5.9 4x4 durango that i just purchased and noticed it shaking and the engine light came on well took it in and #2 plug was misfiring took it out and yea it was a bad plug but replaced all of em to make sure... well seems to have a bit more power now but its still idles rough and still has a shake to it and also it will shut off if ur sitting at a light and or just driving down the road and wont start till u disconnect the pos batt cable and connect it again and it will start.. but shouldn't the idle jump up when the a/c is on or goes into gear?? it stays at 600rpm. it runs fine when just cruising fine besides shutting of sometimes.. the cap,wires and plugs are all new but i never checked the rotor... could it be the coil pack going out? let me know please much help is appreciated thanks.