Cummins ISB Engine Crank No Start - Diagnosis & Repair Part 1 - School Bus Cranks but doesn't start

in this video I'm gonna share with you how to diagnose and fix a crank no start Problem On a Bluebird School Bus with a Cummins Engine!
#cummins #diesel #dieselengine

[@ivanpeterzell695]

I enjoy these buses from the summer.

[@KITS_Auto_and_Truck_Repair]

@ivanpeterzell695 They are pretty nice!

[@usfarmcop]

Pro tip you can back fill the air tanks to get rid of the noise a majority of the time

[@KITS_Auto_and_Truck_Repair]

@usfarmcop Oh Yeah!! Thanks for sharing!

[@JohnSmith-wb6kq]

Would it have not been easier to connect the wiring harness to the suspect ECM without removing the known good ECM and see if coms and a start could have been initiated? or were the wires not long enough?

[@KITS_Auto_and_Truck_Repair]

@JohnSmith-wb6kq The wires were not long enough!

[@martinarrieta248]

Grasias

[@KITS_Auto_and_Truck_Repair]

@martinarrieta248 My Pleasure!

[@donaldsterling9305]

I've got a question about a 7.3 I've narrowed it down to either the PCM or the HPOP how do I test the HPOP

[@KITS_Auto_and_Truck_Repair]

@donaldsterling9305 remove the ICP Sensor and use a pressure gauge in the sensor hole to check injection actuation oil pressure while cranking, it should be between 700 - 900 PSI while cranking!

[@SoldfMC]

Feedback - dont make a video with an ear piercing alarm noise.

[@KITS_Auto_and_Truck_Repair]

@SoldfMC Sorry for that noise, the buzzer was hard to get to and we couldn't find the fuse for it! I hope it wasn't too bad!