M923A1 Fuel Leak Around Electrical Primer

[will35010]

Hi Everyone,

I could use some help. I have an M923A1 that we use for our fire department. On the left side of the engine towards the rear there is a fuel line that has electrical connections out of the top of it. When the engine is running it's spraying fuel between the wires. I was hoping I could just unplug it and cap it off, but the truck doesn't run without the part plugged in.

I need some help figuring out what it does and where I can get the part from. Any NAPA part numbers would be a huge help. I've attached images of the part and it in place on the engine.

Sorry if I missed this issue somewhere else but I couldn't find anything with my search on it. Thank you guys ahead of time!

 

[The HUlk]

I'm guessing it's the fuel shutoff solenoid however the photos I have seen look different.

Welcome aboard.

 

[162tcat]

Doesn't run or doesn't turn over? And that is an A2 engine, the Cummins 6cta.

 

[Coffey1]

That should be just for diagnosis.
If nothing else take it off plug hole plug sensor back up see if it will work.

 

[Swamp Donkey]

And that is an A2 engine, the Cummins 6cta.

This is what I was thinking too. The diagnostic sensor on the NHC250 is on the bottom of the PT pump. I removed mine when it started leaking and it runs fine without it. I won't be of any help on the 8.3 though.

Coffey's suggestion is how I verified mine wasn't necessary to engine operation. I started the truck and unplugged it while running. I then unplugged it with the truck not running and then started it up. It didn't have any effect either way so I removed it. This was on the NHC250 though.

 

[will35010]

Thank you everyone for your help. I was able to plug the hole with a brass cap and plug the sensor back in and zip tie it up and the truck is running fine without the fuel leak.