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My 2000 F350 V10 started acting like it was either misfiring or there was a shutter in the tranny (between 40-50mph). I had a friend scan it for codes wihtout the truck having ran for 24 hours. It showed 0 misfires, should the truck be run for a while prior to checking for codes?
The truck will at times idle a little rough along with the shuttering, so I am a little confused as to why no misfire codes registered in the computer?
Any advise would be great. Thanks
I am no expert here but from what I understand if your coil packs are bad it will misfire and not throw a code the computer looks for a signal going out not a completed signal so as long as all the signals are working you wont get any codes
My 2000 F350 V10 started acting like it was either misfiring or there was a shutter in the tranny (between 40-50mph). I had a friend scan it for codes wihtout the truck having ran for 24 hours. It showed 0 misfires, should the truck be run for a while prior to checking for codes?
The truck will at times idle a little rough along with the shuttering, so I am a little confused as to why no misfire codes registered in the computer?
Any advise would be great. Thanks
First, look at your emissions compliance label under the hood to see if you're OBDI or OBDII.
If it's OBD1, you won't get much info. If it's OBDII, then look at the MISFIRE PIDs.
Yes to deck 60 and project, Each cylinder has it's own sparkplug coil and is hard to determine which one may bad. One must check them by disconecting one at a time, as you would on a a spark plug, of course you can't do this while the engine is running like on older gas engine's. Must start the engine after each one is disconnected and put back on to see if there is any difference with engine ideling. If one does'nt change anything, that one is probably bad.
The problem ended up being one coil that would not work any of the time and another coil that only worked some of the time. Replaced those two coils and while I was in there I replaced the other 8 boots. The ole V10 is running like a top again. Thanks for all the advise.