Hey guys had a question for anyone who has experience having a rough idle with there trucks. I have a 96' slt with the 5.2,auto. 2 wheel drive and has started a rough idle when sitting at a redlight but when I go to neutral it smooths out. The needle goes up and down a little when in gear and its idling and can feel truck shaking a little. I went trail riding over the weekend and got a little too deep into water so Im thinking maybe its water somewhere or maybe the coil pack going out the reason I say coil pack is because it feels like its missing but when I get it up to speed it runs smooth with no popping like if it was missing.Kinda hoping that someone on here has had the same issue and has figured it out. Im not a mechanic but can do a little I cant afford for this thing to brake down so any help would be a big help ! thanks for any input in advance.