engine missing in firing sequence on 1998 Dodge Ram 2500

i have a miss in my engine. i have changed the spark plugs distributor cap and rotor. besides the cords what else could be wrong or what can i do to fix it? thanks nikki

Asked by for the 1998 Dodge Ram 2500
cam shaft sensor under the dist cap
1 more answer
Try changing the spark plugs wires, it will make a big difference. Buy a quality wire set and change them one at a time so they don't get crossed. Here's a wiring diagram