6.0 Missing HELP!

[JES1680]

Hey all. I've got a 99 2500 with the 6.0 and have a missing problem. It stutters under acceleration under 2k rpm but seems to get smoother over that. At idle it's noticably rougher to the point that the truck rocks back and forth. I've changed plugs, filters (fuel, air etc..) and pulled each injector wire in sequence with no change. The only thing I haven't done is plug wires. No check engine light, and I don't know how to pull codes from the ODBII. Next stop is $100.00 diagnostic from the dealer. Any ideas?

 

Thanks

[gomer]

wires,wires wires. i have the same truck and had the same problem. changed my plugs and found the porcelain was burnt and black and the electrodes were almost gone. it ran better after the plugs were changed but not for long. checked the wires and they were cracked,burnt and very brittle, actually had one break in my hands. all this at only 56000 miles.new wires- no problem anymore :thumb:

[JES1680]

Thanks, I've checked the wires and their ok. Actually I broke down and took it to a local shop and had them put it on the scope. #7 injector is dead. They can't figure out why the check engine light has never come on?? Computer says 75,000 times that cylinder has failed to fire.