Ok, IF you cant find the coil packs, you dont need to be working on your truck! Sorry but that is just how it is! Get some hands-on help before you waste a bunch of money!! That may not even be the trouble. But i will tell you to follow the plug wires from the spark plugs back to the COIL PACKS. There they are! Look over top of the passenger side front tire, lift up the flap and they are bolted to the engine. Get someone to help you out, really. Just trying to help here!