Duramax died, no start

[eric67camino]

Truck is an 01 2500HD with the lb7. All stock, 393,000 miles, recent injectors.

Yesterday I replaced the lower radiator hose. Bled the system, ran it to town to heat cycle, added a touch more fluid, and so on.

Never had issues before. Drove it twice yesterday. Probably 30 miles or so, no problems. Twice again today, maybe 20 miles, no problems.

Left again, made it a half mile or so and it act's like someone turned off the ignition in a gas truck. Lights, guages work. Starter cranks with key, etc.

Will fire off ether, so not getting fuel. Made sure priming pump at filter head pumps up. Still no fire unless using ether.

Found fuse for the fuel injection control module popped. Replaced fuse, primed filter, still no start.

Inspected the terminals and wiring as best I could, but find nothing that would have popped the fuse.

I suspect that the FICM is bad, but don't have a replacement to test the theory.

Does anyone have any experience or suggestions?

 

[6872xtc]

I don't have much help as I don't have one, nor have I done much to a D-max.
But is it possible to hook a gauge up to check the output of the CP3 while cranking it over?

 

[max 02]

I’d try a new fuel filter.

 

[eric67camino]

I ended up swapping out the FICM (fuel injection control module). It's basically an ecm with fuel lines going to it.

Couldn't find one within 250 miles so had to have one shipped in.

Replaced it Thursday night. Took all of 5 minutes. Ran it to work and then back to town last night. Seems to be fixed. I hope so, because I have a couple of runs to make and gonna need this one to do it.

 

[max 02]

Right on!