2001 2500HD with 8.1 stalling

[bkhughes18]

I have a 2001 2500 HD with the 8.1L, It sometimes will die at low idle or at a stop. When I try to start it back it will spin over and run the battery down. Also sometimes after it set's over night it will spin over and then start. I have replaced the fuel pump and filter.

[fantastic]

Have you checked for spark? I'm wondering if a coil or relay is faulting when/after it gets heated up. If you've changed fuel pump and filter that should be enough to rule that out. How often does it happen?

[bkhughes18]

Replaced battery, it was bad, it still stalls, now it will do it going down the road. stalled twice in about a 10 min. span.

[aeroguy96]

Try the crankshaft position sensor. My 2500 did the same thing, replaced this part, no problems since. Good luck!