so i have a 2004 f250 i just rebuilt the motor and just put it in the truck today well i tried to start it up and all i get is cranking put no start.... is something i have to do???? i thought by trying to crank on it a few times it would build up oil pressure to shoot of the injectors, but still nothing....

SOMEONE PLEASE HELP...

Thanks,

 

See if this post will help you...
https://www.ford-trucks.com/forums/8...-starting.html

 

thanks alot this helps alot i will try putting some oil in the filter housing and keep yall updateded.....

 

well i did all of it this morning and still nothing any other suggestions.....

 

ok so i tried to get it started and no luck..... i put gas in a rag and put it over the intake and it fired and ran until i pulled it off i figured it would help prime the hpop... so now i have oil pressure put it still wont crank.... i checked all the wiring and grounds and everything seems to be in place.... it has a new set of injectors in it..... can anyone help me???? PLEASE....

Thanks

 

What did you do for the rebuild? Was it running before the work was done? I would start by making sure the upper fuel filter had fuel from the HFCM and then verify (if you can) that you are getting at least 500 psig from the high pressure oil system. I know it is basic, but weak batteries can cause all kind of troubles. Are you sure you have good batteries? can you measure the amperage from each bank of glow plugs? Sometines air in the high pressure oil system can cause it to be very hard to start. How much have you cranked on it?

 

From experence re-check all the wiring to the sensors and that the PCM and FICM cables are locked.

 

i bought 2 new batt. today and i also check the fuel filter bowl in the front and it had fuel in the lines going to the head.... not sure what the pressure was.... i also check and re-checked and re-re-checked every wire and harness...

 

Is the PCM and FICM from the same model year?

 

yes they are both from a 2004

 

How long did you crank on it, did you re-fill the HPO system resevoir with oil before trying to start the truck?

 

I have heard of folks almost wear out a new set of batteries starting an engine after a HPO system repair - due to air left in the lines. How much have you cranked?

 

i cranked on it for about a few hours on and off (let the starter cool off).... HPO system resevoir??? is that the valley under the oil cooler??? if so then no.... but we had it running by putting gas on a rag and putting it over the intake and letting it start with the fumes hoping it would prime the system but no luck.....

 

The HPO system will take in total on a late build(wavy rail) about three liters of oil to fill.If the resevior is full it can take a almost solid minute of cranking to build enough pressure to fire the injectors.With the system empty it would take alot longer.If it still doesn't start I would pressure test the HPO system for leaks.

 

how can i test the hpo system???