2010 Peterbilt 387 ISX CM871 Lost ECM Power

[Rawze]

A. Fuel shutoff solenoids are notorious for killing engine randomly, or when it gets hot. - Removing the guts of the fuel shutoff solenoid and re-installing it would remove this from the causes... however, you described electric lift pump not working.. which points more towards ecm to me...

B. CM871 ecm itself is notoriously famous for getting intermittent and dying just like you describe. Get engine running and smack it with something almost hard enough to dent its casing.. if it cuts out, ecm is going bad.


C. Older Petes have a few issues for wiring and dying. Here is one of the more common known spots...
info: https://rawze.com/forums/showthread.php?...05#pid3505

could be either one.. but if i had to guess, your post implies a dying ecm more-so than actual wiring issues.