ISX 15 NOT TURNING OVER AFTER EGR TUNEUP

[Rawze]

(10-12-2020 )kellyedrew Wrote:  I have CM 870 in a 2012 Peterbilt 587
...

2012 pete's did not come with an 870 engine... just trying to get a clearer picture of what you have.

Is this a glider truck? ... What is the engine serial number (ESN#)?

(referring to the engine side of things)...

btw: changing egr-related engine sensors will not make it refuse to crank.

Also, if there is a bad sensors or bad connections after replacing things, there will be check engine lights. You can use insite software on it to see what the cummins codes are.