Havig a bad day. CM2350 fuel pump failure.

[Rawze]

(09-22-2017 )Hetdiesel Wrote:  Are people catching this on an oil sample first or just replacing before there's trouble?

(CM2250 & CM2350 engines) ...
There is no warning, and it certainly will not show up in an oil sample before the failure. Best you can hope for is the proverbial 559 (or other low fuel pressure code) check engine light that only comes on when you get on it hard. YOu see that CEL light and a fuel rpesssure code,,.. you should be in panic city!. You need to catch it in less than 300 miles. If so, you may save the engine, but lots of damage is done no matter what. Continuing to drive one whit this fuel pressure code coming up in the dash is the death of the engine. That is really your only warning.