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cumminsdr
cumminsdr, Mechanic
Category: Medium and Heavy Trucks
Satisfied Customers: 3564
Experience:  All types of Cummins applications
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I have an n-14 select red top cummins im having a hard time

Customer Question

I have an n-14 select red top cummins im having a hard time cranking it sucks all the fuel from the filter and wont prim back up when I try to take the filter off and put more fuel in it I can here the fuel draning back in to the tanks and I don't want to get it addicted to starting fluid. once I can get it cranked it runs fine all day and the next morning it does the same thing I know there isn't any checkvalve i just changed the equalizer valve
Submitted: 1 year ago.
Category: Medium and Heavy Trucks
Expert:  cumminsdr replied 1 year ago.

There should be a check valve on the outlet side of the ECM cooling plate. It is internal to the fitting that provides the fuel to the filter or fuel pump.Review the pic of the location that I have attached

Customer: replied 1 year ago.
Will that help it to crank ?
Expert:  cumminsdr replied 1 year ago.

yes It is the primary cause of your issue.

Customer: replied 1 year ago.
I will go get one in the morning and go from there. Thanks
We had the computer changed and the truck cranked fine before we had it changed and now since it was changed it has been giving trouble you crank.
Expert:  cumminsdr replied 1 year ago.

Parts can fail at any time. Changing the ECM would not cause a cranking issue with out fault codes. It's electronic.

Customer: replied 1 year ago.
When they changed the ECM they must not have put the check valve back right. It all makes sense to me now.
Expert:  cumminsdr replied 1 year ago.

Its possible. There is only a rubber seal in the check valve that allows fuel to only pass one way.

Expert:  cumminsdr replied 1 year ago.

If it has been failed for a while, it puts extra strain on the main fuel pump Just a FYI

Customer: replied 1 year ago.
Thank you very much
Expert:  cumminsdr replied 1 year ago.

Your welcome

Expert:  cumminsdr replied 1 year ago.

Hi Just following up,Please don't forget to rate my service

Expert:  cumminsdr replied 12 months ago.

Please don't forget to rate my service.

Expert:  cumminsdr replied 12 months ago.

Please don't forget to rate my service

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