Random shuttoff

[Rawze]

Your description is vague. is the engine cutting out and shutting off?.. or is the dash?... and the engine fuel pedal not responding?.

you were not very clear on "WHAT" is actually happening.


== First of all, the ecm on CM570/CM870/CM871's is notorious for being flaky. You say you replaced ECM but this does not good if you did not get a 100% certified OEM ecm from a certified stealers%it. Most used/reman ecm's on the market for those trucks any more ARE IN FACT FLAKY by now. - A new/reman from 100% certified stealers%it will always have a brand new circuit board in them .. and this is the only way to go to ensure you did not get another flaky ecm. Banging on the ecm (hard enough to almost dent its casing) at idle will typically reveal this issue... as engine will cut out briefly when it acts up... at top left area, from top down, and/or near middle right area especially.

Next...

== Internationals in particular also suffer issues with the dash, cab controller, etc.. where the fuses in the fuse panel get tarnished, but are not bad ... and then cause slight voltage drops here and there, making the cab, cluster,. or other components do some really flaky things. - Here is an article on this ... and it is a VERY common issue with them. - I have to replace all my fuses every 2-3 years because of this on my own truck. That is how common it can be...
info: https://rawze.com/forums/showthread.php?...1#pid12861