It has been running very well. I parked it in the driveway overnight like normal and tried to start it for work in the morning. It cranks, but does not start. Doesn't sound like the plugs are firing. The electrical accessories work, the gauges act normally, but no tachometer movement while cranking. Pressed on the gas pedal while cranking, no start. I tried both keys and both will crank, but no start. Disconnected battery for 1 hour to reset anti-theft, still no start. Fuel in the rail and fuel pump seems to be running, compression tested 1 and 6, both 130 PSI. I tried to get spark (spark plug in COP, grounded to valve cover bolt) and there does not appear to be a spark. The PCM has no codes stored. This is my primary vehicle. What should I try next?

 

Do you hear the pump charge when you turn the key to on? I wouldn't give it gas while cranking... wouldn't want to flood it...

 

Moved to the 6.8L V10 forum.

Stewart

 

Never mind.

 

Did you check the IAC valve? Could be stuck as I had a similar issue.