OK, I got a code reader and it say misfire on cylinder 6. I just had a tune up and it came right back on. Tune up included plugs, wires, rotor and cap. It runs rough on idle but smooths out when accelerating. Does anyone know if there has been an internal issue with the 5.9l engines that would make this happen. I am in the military and will soon be shipping this vehicle to hawaii, but I need to get it fixed before that. If anyone can help please give me some input.

 

Uh---5.9 smoker or 5.9 gas?

Please start at the beginning and let us know what you have, mileage, mods, recent maint history-------or put something in your sig, so its there all the time.

 

2003 Dodge Ram 1500 Quad Cab
5.9l Gas
All Stock with 96,000 miles
Recent maintenance: Complete tune up...plugs, wires, rotor and cap. Replaced seal on rear end. Throttle body and fuel injectors cleaned.

 

i don't know about these trucks but when i had work doneon my grandpa's ford this summer he had the same problem and it turned out to be a coil. i don't know if yours even have coils but you might check on it if you don't know either