Fuel Pump

[Barry W]

Hope this in correct forum, need location of Electrical fuel pump

2006 Monaco Diplomat PDQ

 

 

Barry

[timaz996]

What engine do you have Barry?

[Barry W]

400hp ISL

[Walker]

Passenger side of engine.

[jacwjames]

Create an account on the Cummins Quickserve site.  https://quickserve.cummins.com/info/index.html

Once you create and account you register your engine via SN.  You will then have access to all the parts and maintenance information.  You can get specific info on you engine.  In the past when I looked up a part I'd print the schematic to PDF and save it in my files. 

Best of all it's FREE

[Barry W]

Now will need to know where to find engine SN?

 

[jacwjames]

Easiest is if you have the build sheet, it is listed there.

There is a plate on the side of the engine above the injector pump that has the info but it's are to see.  Might have to take a picture of it.

[Barry W]

While trying to discover why electric fuel pump in not working, plugged my bluefire in and when turn key on it does not light up.  So no juice there, where would the fuse for that circuit be and what would it be named?

 

[jacwjames]

Not sure where they would be on your coach but in my passenger side rear electrical bay I have 3 fuse holders with a total of 7 fuses.  Six of them are for the engine/ecm.  Might check to see if you have similar fuses.

[Barry W]

Finally had a diesel mechanic come out and check why not starting.  He arrived and immediately pulled a 7.5 amp fuse from ecm fuse box inside battery bay.

Motor started immediately.   YEA!!!!    I did not know there were any fuses there. Pic included.  Front and middle box are labeled ecm.  Back box is BCR, mechanic said he did not know what it was for, maybe wise heads here have a suggestion.

Edited November 1, 2022 by Barry W

[jacwjames]

Mine are more accessible in the passenger side rear electrical bay, they are labeled.  Most are the the engine/ECM, one is for the transmission. 

[Barry W]

Yes mechanic said one for motor, one for transmission, but he did not know what the one labeled BCR was for.

 

[jacwjames]

No idea, I checked my wiring diagrams and it shows the fuses but does not clearly say what they are for.  The wiring diagram on the Cummins Quickserve site also shows the fuses but does not detail what they are for. 

I guess knowing they are there and to check them if you have a NO Start situation is good enough.