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I'm going to recommend exactly what DakDan the moderator said, it sounds like the crankshaft position sensor....I've been down that road, sounds exactly like the issue....fairly easily to change out, 60 bucks, one connection and two bolts....pretty sure it's a 10mm socket....up next to the flywheel on passenger side....
CF
Well I was going to say you may have a bad coil but I think your PCM/computer is taking a dump, But it could be a wiring problem also.
The no bus problem negates the coil I think
To post a video just copy the web page and paste here
Bad IAC or bad coil would make it run like sh*t, but not cut off clean like that. Also the code would be misfires for bad coil. Reminds me... gotta pick up a few spare coils from a crashed unit at the junkyard. At nearly 260K, mine may take a crap. Is the PCM plug and play if the same part number is obtained?
A bad coil will work then just cut out, a poster had a Dak that would run then die when hot I suggested the coil he pulled it out and it was cracked open. Older Dakotas 3.9, 5.2, 5.9 and my 2.5 have only one coil not multiples like the 4.7 and 3.7 so if the one coil cuts out the car dies from no spark.
Yea but if its shorting out why is it intermittent if its shorted its shorted I'm going with the PCM as that's how my PCM acted before it got replaced intermittent shut downs bucking on and off just on and off strange things going on poor performance.
But I know with wiring an intermittent wire brake is possible seen it happen.
I wish I had an electrical print of this truck. .the pinout of the obd2 connector I have isn't the same as what I have on the truck. Here are some pictures.
