dodge ram 1500 missfire no codes
im working on a 2001 dodge ram 1500 5.9l new engine last year. all of the sudden this truck started missing. i replaced plugs,wires,cap and rotor and coil. trucks starts seems to run decent rev engine revs good. put in gear soon as it gets a load it starts to miss put in neutral and still misfires. shut down and restart some times idles perfect sometimes sometimes not. i'm wondering if its the distributor anyone with ideas or dealt with this same issue ?