CM2250 shutting of while trying to take off

[ricoriverausmc]

(09-23-2025 )Rawze Wrote:  

(09-23-2025 )tree98 Wrote:  Will it pass a leakdown test?.......

https://odysee.com/@rawze:d/isx-injector...e-cm2250:e

yes ... if it will not pass a leak-down test then that is the first place to start with it.

next is the de-mandate programming to ensue it is not killing the engine internally and now something has caught up with this fact. More then 90% of all de-mandate programming is harmful to the engine over time... some far worse than others.

Just did the test as advices and it passed twice. Only dropped about 400 psi in one minute

[ricoriverausmc]

(Yesterday )Rawze Wrote:  but will it pass a leak-down test, when done as shown exactly in this video..????>
https://rawze.com/forums/showthread.php?...6#pid85046

What was the final pressure after 60 seconds?.

28722

[Rawze]

when they replaced the fuel pump head, did they replace the tappets, rollers, and plungers too?.


.. and did you send over that file for a review as well?.

What is your engine ser#?.

What make/model vehicle, and maybe some more history on it?.

[ricoriverausmc]

(Today )Rawze Wrote:  when they replaced the fuel pump head, did they replace the tappets, rollers, and plungers too?.


.. and did you send over that file for a review as well?.

What is your engine ser#?.

What make/model vehicle, and maybe some more history on it?.

Yes they did
ESN 79555288
Peterbilt 587
Just was inframed 30 k ago I have had issue with coolant mixing with fuel as well tanks where cleaned but thinking something is plugged up somewhere

I will work on downloading the file today.. raining down here in Florida. Yesterday I found the fuel actuator had a lot of play and once I removed it the part that goes into the fuel pump head was bent. I got a new one and once the rain settles I’ll be installing it. Thank you again for your help