Ever have fault 1117? Ignition pwr loss.

[Rawze]

Average expected lifespan of silicone-based electronic components is about 10 years shelf life. This is regardless of use or not. Heat plays a big roll in lifespan though, even if the components are not being used. At 185 F+ that the ECM has to suffer on a constant basis, my own opinion would expect that lifespan to be about 7-8 years instead of 10. Add in vibration and all the other things like heat expansion etc. and it becomes a pretty harsh environment those ECM's have to suffer. If you get more than half that (4 years+) out of one, it has done ok in my book, and it is not a wasted investment to replace it if other options for finding problems have been exhausted. To me, even the couple hundred bucks they offer for the old core is meaningless too, if the replacement ECM does not fix the underlying issue.

I have seen my share of old trucks with old ECM's on them that are more than 10 years old, but they are running on borrowed time if you ask me.


- The best option would be to put a different ECM on it for a few days from another truck known not to have that problem, but unfortunately that is not an option that everyone has.


Just some blabbering words to think about -- Rawze.