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Super Contributor

Re: 3126 cranks but will not start

Either the HEUI pump has no output pressure or you have a massive leak. Remove the valve cover and crank the engine to check for a broken/leaking jumper tube. If there are no broken tubes or major oil leaks, deadhead the HEUI pump to check pressure. Should be over 3500 PSI.
Contributor FMS
Contributor

Re: 3126 cranks but will not start

It goes from about 160-210

Injection actuation pressure shows 242 then goes to DIAG

Desired actuation pressure goes straight to 1450 psi

injection actuation output is 100%

The engine serial is 4cw00463 just in case.

Super Contributor

Re: 3126 cranks but will not start

Does ET show engine speed when cranking? What is the injection actuation pressure when cranking? 750 psi is needed to start.
Contributor FMS
Contributor

3126 cranks but will not start

This is on a piece of military Equipment DV100 deuce. We have tried everything sensors,pump,ecm,fuel regulator,etc...

When it first stalled it was like it was out of fuel so checked the filters and they were full so then we drug it into the the shop and started to T.S.

Hooked it to ET and it had two codes and a bad knock when turning it over. codes were 164-11(39) and injector 6 current high.Changed injector six with o-ring the knock went away but still there is the 164-11 and everything is new.   thanks ahead of time    we are beating our heads on the wall