6.0 that starts, runs for 10 seconds, then abruptly dies - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 35 (permalink) Old 01-07-2013, 02:06 AM Thread Starter
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6.0 that starts, runs for 10 seconds, then abruptly dies

I HOPE ONE OF YOUALL CAN HELP. i JUST CHANGED OUT THE EXAUST y PIPE on an 03 --6.0. put new IPR valve & ICP with new ends on both as they had been melted from hot ex. Also cleaned the turbo & checked the solinoid. All seem to be ok. My old vcm indicated I had a problem with CMP. Put in a new one as they aren't expensive. Got it buttoned up and when it started, I got the usual hit & miss untill yhe air was purged from high press. oil. Now it starts with no problem(2.5 seconds crank time)but only runs for 10 seconds and just dies. Abruptly. Let it sit for 1/2 minute and do another start,run,die.HELP. My VCM died and is in the shop so I don't have a source to check with. Any ideas???????
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post #2 of 35 (permalink) Old 01-07-2013, 01:04 PM
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If the truck ran before the work was done and now it won't, need to recheck the repair steps. Having a ScanGauge2 would help tremendously in reading actual values from sensors replaced. Since the IPR and ICP are close to each other on 03' models, you didn't by chance get the wires mixed up? It probably has to be one of the sensors replaced, as the turbo and exhaust repairs would not cause it to not run. Another possibility is a weak FICM. Recheck all connections of everything that was taken apart. Lets us know what you find, and good luck.

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Jan 03' built 6.0/F250cc4wd trqsft/SCT-tuned by KEM-Performance/Garrett Powermax vg-turbo/blue spring mod/gauges=egt+boost+fuel+SG2/exhaust/airaid intake/DR 4.5 lift/dual bilsteins/315's/greasable ball joints/powerstop/smittybuilt/kc lights/high idle mod/roll-n-lock/Mobil Delvac1 ESP 5W40 with (Archoil AR9100 in the oil) and (AR6200 in the fuel)
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post #3 of 35 (permalink) Old 01-07-2013, 02:36 PM Thread Starter
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Thanks Harry for the reply. The truck was DOA when it was trailered in. The Y pipe was broken in 2 places due to the owners previous egr delete self help. Consequently, the ex. gas burned off the wires on the icp & ipr. Replaced both plus new wire ends. the icp has 3 wires. the ipr has only 2. Before my vcm died the death, it showed a bad cmp and no ficm sync. I replaced the cmp. The eng. starts good and will idle for 10 seconds then die . It doesn't matter if I rev the eng, it still runs for 10 sec. Makes me believe it is something in ign. circuit. Will have to borrow a friends MODUS. All help is appreciated. Seems the more I learn, the less I know. Imagine that. Thanks agn. BOB
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post #4 of 35 (permalink) Old 01-10-2013, 01:28 AM Thread Starter
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6.0 that runs: dies

I borrowed a snapon MODIS and got a P1725. Doesn't mean anything. Problem is the eng. will not run long enough to scan. Am in the process of air checking high pressure oil. Got the ICP out & my adapter installed and compressor died the death. Had to hoist it off my truck and disassembled all over the driveway & spent all day repairing. Tomorrow is the day of truth. I am praying something in the high press. oil is the problem. I'll let you know. Cheers.
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post #5 of 35 (permalink) Old 01-10-2013, 06:56 PM
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Do you know what your fuel pressure is? This sounds like a classic plugged filter or weak lift pump.
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post #6 of 35 (permalink) Old 01-10-2013, 11:06 PM Thread Starter
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Quote:
Originally Posted by lenzhotrod View Post
Do you know what your fuel pressure is? This sounds like a classic plugged filter or weak lift pump.
Thanks for your suggestion. However, When I air checked the high press. system, I found the problem. Or at least a major prob..Bad air leak on both stand pipes to the oil manifolds. Am waiting on 1 more pipe & I can check again.Thanks agn. I'll post how it goes. Tomorrow I have an allison to R&R in a Volvo tractor so can't do the 6oh until Monday. Cheers. Bob
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post #7 of 35 (permalink) Old 01-15-2013, 02:00 AM Thread Starter
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Replaced both down pipes, & guess what?. Still leaks. pulled hpop cover & found bad cover seal. Pulled pump & replaced all (o) rings, reinstalled cover and praise God, no more air leaks. Almost have it ready to start. Will let you know how it goes.---Bob
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post #8 of 35 (permalink) Old 01-15-2013, 12:09 PM
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Whats the mileage on this truck? Look forward to the outcome, and hope this fixes it.

Harry

Jan 03' built 6.0/F250cc4wd trqsft/SCT-tuned by KEM-Performance/Garrett Powermax vg-turbo/blue spring mod/gauges=egt+boost+fuel+SG2/exhaust/airaid intake/DR 4.5 lift/dual bilsteins/315's/greasable ball joints/powerstop/smittybuilt/kc lights/high idle mod/roll-n-lock/Mobil Delvac1 ESP 5W40 with (Archoil AR9100 in the oil) and (AR6200 in the fuel)
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post #9 of 35 (permalink) Old 01-15-2013, 01:07 PM Thread Starter
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6 oh blues

IT HAS 50XXXMILES SHOWING, BUT TRUCK IDLED ALMOST EVERY DAY FOR ALL THOSE YEARS AT DISNEY IN ORLANDO. I DID THE MATH (25 MILES=1hour) 5 days a week, for 7 hours a day etc. so 250k would be a reasonable figure for eng. miles. No big surprise that the business that bought it are having a nightmare.(So am I for that matter) I'm gitting a years worth of schooling in a short time.I am a fairly quick study, so the next one will not beas much of a problem. (maybe!)See ya---Bob
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post #10 of 35 (permalink) Old 01-16-2013, 12:46 AM
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So I'm guessing you got it running and it's all good now?

Harry

Jan 03' built 6.0/F250cc4wd trqsft/SCT-tuned by KEM-Performance/Garrett Powermax vg-turbo/blue spring mod/gauges=egt+boost+fuel+SG2/exhaust/airaid intake/DR 4.5 lift/dual bilsteins/315's/greasable ball joints/powerstop/smittybuilt/kc lights/high idle mod/roll-n-lock/Mobil Delvac1 ESP 5W40 with (Archoil AR9100 in the oil) and (AR6200 in the fuel)
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