Well after a couple hours of work we got a new 17* hpop installed along with a new IPR and the truck still wont fire. It cranks but it wont fire. What could it be?

On a side note, my knock is no longer present

Cowboy Steve

 

hydrolocked?? isn't that what it's called??

 

Thats a gasser disease, never seen it in a diesel.

Cowboy Steve

 

Make sure the IPR electrical connection is on tight and the wires arent broke. It might just take a little time to get the air out. Check all the fuses. Is there any smoke from the exhaust at all while cranking?
------------Jeremy

 

i'm talking abuot with injector instals lol

 

Jboard, how long did you crank on the truck before it fired up?

Cowboy Steve

 

Could it be the CPS?

Cowboy Steve

 

tach moving while cranking?

 

i'm still lost on the part that it has no more knock but it still doesnt run? how can you tell if it doesnt run?
how long have you been cranking since the new pump install? can take a while to bleed air and fire on oil

 

Did you fill the the HPOP with oil?

 

I had same problem after replacing IDM and UVCH. Tried for a couple of days no luck. Charged Batteries overnight cleaned cables truck fired. Only thing I can think of is Batteries were not hot enough to run starter and electronics at the same time. Good luck.

 

it can and will happen just as fast on a diesel if not faster,
did you check you hpop level? if you just did injectors it will take up to 1/2 hour sometimes to start. if your battery are just a little low it wont start either.it will crank and sound fine but wont start.been thier done that

 

I never changed my pump but when I put new orings on my IPR and installed the HPX it took about 10 min to start. If all else fails(not recommended but...) disconnect the glowplug relay crank and give it a shot of WD40 could give it enough RPM to bring everything up to pressure.
-----------Jeremy

 

nah, just keep a charger on the batts while cranking and make sure you dont overheat the starter

 

If you have an HPX line pull it off and pull the fuse for the IDM. Then crank it until you get oil out of both head rails. PUt it all back together and it should spin right up.