Alright Fellas,
So its been awhile since I posted on a forum because my trucks been a champ until yesterday. So, Saturday the 7th I got off work and my truck wouldn't start. (17 degrees outside) It was cranking kind of slow so I figured the batteries needed replaced. the truck would crank slower than normal and turn over once or twice (occasionally) but wouldn't stay running. Battery died and a coworker with a Cummins offered to give me a jump. Well it took about 20 mins of trying and it was cranking faster hooked to the other truck but would only fire a couple times and die. finally got it running and it was sounding pretty rough for a couple minutes but wasn't smoking any more than a normal cold start. Drove it home no Issues.
So I replaced the batteries 2 days later and she cranks like a raped ape again. But now it's cranking longer than the normal 2 crank start, more like 5-10 crank and start. So this Sunday 15th the wife and I took the truck out to run some errands. Cold start, 8-10 cranks and it started. Drove fine made 2 grocery stops got fuel from the same place I always go and added Power Service anti gelling treatment to the mix to see if that would help with the longer than normal cranks. we went to dinner drove home and the truck died 2/3 of the way into my parking spot and I tried to restart 3 times. It was late and Sunday so I hopped in the wifes car and picked up a new fuel filter. Changed and primed new filter like I always do, no leaks top or bottom and it still wouldn't start.
So at this point I hook the tuner up to check for codes and find nothing. truck is on stock setting. I put the key to run and check fuel pressure tuner says Actual 250ish Desired 5000ish. crank the engine and fuel pressure Actual quickly raises to 6000ish still only cranks but wont even fire once. So I remove the filter to inspect O-rings and clean and inspect the WIF. The WIF was dirty so I cleaned and I also inspected the plastic Filter Head relief screw for damage and O-Ring and found none. Reseated the filter primed it up tell fuel was gushing out smooth and clear. Opened the low presser Schrader valve on the fuel line and pumped and found I was getting clear fuel from there also.
Checked the Injector rates Saturday the 14th and everything looked good.
Checked the FICM wiring for the normal wear spots and found nothing other than it had been nicely repaired by the first owner.
Never had a RPM lope at idle. I've replaced it before because of that issue.
Checked the fuel filter head for leaks or damage and couldn't find any. I did notice the pump never gets rock solid anymore but will still pump bubble less fuel out the screw and the lower pressure fuel line Schrader valve. Re inspected and re seated filter with no improvements.
Cleaned and checked gas cap for tightness.
Checked Oil for diesel but it was good. so I don't think and injector is stuck open.
Checked all the multi color fuses with a fuse checker. all good. guess ill need to check the grey Delphi fuses next.
Check fuel lines from Filter forward didn't see any leaks but they had a braided cover over them. Haven't checked from filter back due to it being 10 degrees and a sheet of diesel covered ice now. but you would think I would see air bubbles if it was leaking and I don't.
checked and wiggle tested most of the wiring I could get my hand on. still only cranks and I cant get it to fire.
I've been leaving the block heater and charger hooked up when I'm not working on it. I've spent about 13 hours working on it since last night but now I'm at work tell 3am. its going to be a long night.
Does anyone have any ideas? I've spent about 4 hours online reading through all the forums and its mostly just things I've already tried. Any help is appreciated.
So its been awhile since I posted on a forum because my trucks been a champ until yesterday. So, Saturday the 7th I got off work and my truck wouldn't start. (17 degrees outside) It was cranking kind of slow so I figured the batteries needed replaced. the truck would crank slower than normal and turn over once or twice (occasionally) but wouldn't stay running. Battery died and a coworker with a Cummins offered to give me a jump. Well it took about 20 mins of trying and it was cranking faster hooked to the other truck but would only fire a couple times and die. finally got it running and it was sounding pretty rough for a couple minutes but wasn't smoking any more than a normal cold start. Drove it home no Issues.
So I replaced the batteries 2 days later and she cranks like a raped ape again. But now it's cranking longer than the normal 2 crank start, more like 5-10 crank and start. So this Sunday 15th the wife and I took the truck out to run some errands. Cold start, 8-10 cranks and it started. Drove fine made 2 grocery stops got fuel from the same place I always go and added Power Service anti gelling treatment to the mix to see if that would help with the longer than normal cranks. we went to dinner drove home and the truck died 2/3 of the way into my parking spot and I tried to restart 3 times. It was late and Sunday so I hopped in the wifes car and picked up a new fuel filter. Changed and primed new filter like I always do, no leaks top or bottom and it still wouldn't start.
So at this point I hook the tuner up to check for codes and find nothing. truck is on stock setting. I put the key to run and check fuel pressure tuner says Actual 250ish Desired 5000ish. crank the engine and fuel pressure Actual quickly raises to 6000ish still only cranks but wont even fire once. So I remove the filter to inspect O-rings and clean and inspect the WIF. The WIF was dirty so I cleaned and I also inspected the plastic Filter Head relief screw for damage and O-Ring and found none. Reseated the filter primed it up tell fuel was gushing out smooth and clear. Opened the low presser Schrader valve on the fuel line and pumped and found I was getting clear fuel from there also.
Checked the Injector rates Saturday the 14th and everything looked good.
Checked the FICM wiring for the normal wear spots and found nothing other than it had been nicely repaired by the first owner.
Never had a RPM lope at idle. I've replaced it before because of that issue.
Checked the fuel filter head for leaks or damage and couldn't find any. I did notice the pump never gets rock solid anymore but will still pump bubble less fuel out the screw and the lower pressure fuel line Schrader valve. Re inspected and re seated filter with no improvements.
Cleaned and checked gas cap for tightness.
Checked Oil for diesel but it was good. so I don't think and injector is stuck open.
Checked all the multi color fuses with a fuse checker. all good. guess ill need to check the grey Delphi fuses next.
Check fuel lines from Filter forward didn't see any leaks but they had a braided cover over them. Haven't checked from filter back due to it being 10 degrees and a sheet of diesel covered ice now. but you would think I would see air bubbles if it was leaking and I don't.
checked and wiggle tested most of the wiring I could get my hand on. still only cranks and I cant get it to fire.
I've been leaving the block heater and charger hooked up when I'm not working on it. I've spent about 13 hours working on it since last night but now I'm at work tell 3am. its going to be a long night.
Does anyone have any ideas? I've spent about 4 hours online reading through all the forums and its mostly just things I've already tried. Any help is appreciated.