Compression Ignition Addict
Join Date: Sep 2009
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Random no start.
I have a early build 2004 f250 6.0 with 167k on it. I had the black onxys head gaskets and head studs put in at 147k at around 157k it started pushing water out of the degas bottle if I drove the truck hard. So I took it easy on it for the next 10k miles. One day the truck was hard to get started. It would turn over and try to start but acted like it was only hitting on a few cylinders. I let the glow plugs cycle a few time and tried to start it again. After about 15 seconds of cranking it started and ran rough for about 30 seconds with lots of white smoke that smelled like diesel. Checked the codes and got p0272 and p0278. Thinking the head gasket has got reall bad I pulled the heads off. Had the heads checked out and both were good. Heads were replaced with 1st head gaskets.
Get the truck back together and it has a miss to it so I check the codes and I'm still getting code p0278. So I replaced the #6 injector.
After that truck runs good starts good. Drive it for about 100 miles every thing seems good. Next day go to a buddies house and let the truck sit for about 3 hours.
Try to start it and it turns over but sounds like its not hitting on all cylinders. Cycle the key a few time and turn it over for about 20 seconds and still doing the same thing. Repeated that about 10 times and truck starts up. Drove the truck to autozone and picked up a scan gauge 2. Got it hooked up so I could check the ficm, icp, ipr and sync.
Truck ran great and start right up for two days. Then tonight I go to start it and it does the no start stuff again. Looking at the scan gauge while cranking I got these readings
Icp 1500-1700 ipr 82 ficm 48 and syc 1
Once the truck started the readings went to icp 550-600 ipr 25-30 ficm 48 syc 1
It took 3 times to get it to start. it does it cold or hot.
What should I look at 1st? The icp sensor and harness is about a year old with about 10k on it.