Hard to crank after injector install

tkpatter · #1 (**permalink**) 10-24-2009, 08:06 AM

2005 F250 6.0

I removed and reinstalled all 8 injectors. Spool was bad on #8 so I installed a reman. Everything is back together. New orings and copper washers on injectors. Torqued to 23#. Primed HPOR & fuel system. Changed oil and filters. I am sure I have alot of air in the system so I am being patient. Crank for about 10 seconds and wait 4 starter to cool then retry. Ran down batts so they are on charge now. My question is as the motor is turning over it sounds like a gas motor with low compression on one cylinder. It is continuose every piston revolution. Might just be just be alot of air in the fuel and oil system. This is my 1st diesel challange so I dont know if this sound is normal. Any of you pro"s out there heard this before?

Sounds like a big block with a dead cylinder??

Robsr · #2 (**permalink**) 10-24-2009, 09:06 AM

Yes, this is pretty normal, just be patient and try not to burn up the starter, lol. as soon as you get the air purged from the HPOP system, and get some fuel in the cylinders, she'll crank normally and start.

tkpatter · #3 (**permalink**) 10-24-2009, 09:21 AM

Thanks.....she has hit a couple of times just as the batt were dieing....sounds like its gonna start when the batteries come back up.

Robsr · #4 (**permalink**) 10-24-2009, 09:43 AM

Yeah, air in the HPOP system, wants to fire about the time the batts die, lol. Next time do two or three squirts of oil in the cylinders before injector goes in, this will help it spin a little faster during hpop purge.

tkpatter · #5 (**permalink**) 10-24-2009, 01:32 PM

Batts were low to begin with. The trucks has been sitting for about 4 or 5 weeks. The batts are brand new but with no activity they were draggin so I never got it to spin like it should have. Got 2 chargers on them now. Going to wait til they are fully charged before I try again.

tkpatter · #6 (**permalink**) 10-25-2009, 05:28 AM

I am getting TBC FAULT as I am trying to crank? Any ideas bout this code?

tkpatter · #7 (**permalink**) 10-25-2009, 06:01 AM

Ok its Sunday. I have been trying to crank this truck since yesterday. I have hot batteries and it turns over good . The only time it hits is just as the batteries are near complete drain. It will fire two times. I allow the starter to cool between attempts for several hours but this is getting old. Is this normal ?