CUCV starts fine... Immediately dies

[j3vw]

Basics... 17k ml truck sat for 4-5 years...
Add fresh batteries... started up and ran beautiful...first lick... loaded on trailer and headed home...
Started and ran perfect a few times...Was idleing great then quit.
Now... it's starts but immediately dies like you turned the key off..
Filter was changed.. bleed down... great pressure and no air at bleeder on filter housing..
I read a bunch of threads.. most relate to NON start issues...
If it fires right up? should not be a GP issue correct?
Pump solenoid clicks when the wire is pulled off..
Please point me in the right direction..
Thanks in advance for any input!

 

[blueblaze]

maybe try and put a straight wire to the IP from the battery to rule out a wiring or ignition switch issue.

 

[j3vw]

So you run a jumper wire from battery directly to the "pink" wire tab... correct?
thx

 

[j3vw]

BTW.. not sure if it matters but it's a 84' M1028..

 

[dmetalmiki]

The hot wire goes straight to the pump shutoff feed. Also check for collapsed or 'soft' piping from the tank or to the pump.
Check if fuel arrive at the pump.

 

[richingalveston]

wire it from the front batter, don't wont to put 24v to that solenoid.
front bat + terminal to where you disconnected the pink wire.

if no problem there start looking at fuel delivery problems

 

[Tinstar]

What was done to truck besides the new batteries?
I know most guys spend 1k on a truck sitting that long to get it on the road.

Clean tank?
New Fuel pump?
Replace ALL the rubber fuel lines?

Sounding like IP, but could also be starving for fuel.
Gets just enough to fire then dies.

 

[porkysplace]

If the truck sat for 4-5 years with fuel in the tank the new filter could be plugged already , the tank could be full of algae.

 

[cucvrus]

Have you checked your fuel sock lately? This means you CUCVLOVER also. Carry on.

 

[j3vw]

Thanks guys... she's back to life... IP filled with crap.. plugged check valve and tripped solenoid... at least now I can move her around till the box comes off the back and I can easily Get to the tank to do a proper service/flush front to back!

 

[patracy]

Thanks guys... she's back to life... IP filled with crap.. plugged check valve and tripped solenoid... at least now I can move her around till the box comes off the back and I can easily Get to the tank to do a proper service/flush front to back!

Was the crap solid in nature? Looks like coffee grinds, but looking close at it, it's plastic? If so, that's the EMD ring decomposing. It will still run, but more of it will come apart and do the same thing. Eventually the IP will die.

 

[CUCVLOVER]

View attachment 644159View attachment 644160Have you checked your fuel sock lately? This means you CUCVLOVER also. Carry on.

In January I put a new tank, new sending unit and new sock on it, lift pump and ip rebuild. May pull il and have done again.


To the op glad ya got your truck running