Starting issues when cold, prolonged cranking when warm - Ford Powerstroke Diesel Forum
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Old 06-05-2013, 01:20 PM
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Starting issues when cold, prolonged cranking when warm

Hey guys, went over to the dark side with a Cummins, then to an SUV for a little while but now I am back to an 01 CC LB Dually Lariat that I purchased yesterday.

I am however having an odd issue. Everything was fine, truck was running as normal, it did however turn over for about 1.5 - 2 seconds before firing everytime. After shutting the truck off for the night, in the morning it fired for about 5 seconds, then shut off. Now it wont fire at all. Cranks over very strong, and no smoke at all. It does however crank up on starting fluid. Oil pressure builds quick when its running, past halfway like usual. Oil is at the correct level.

When running, its very powerful, truck has a tune, exhaust and suncoast tranny. Running 28psi with a hint of black smoke, so I doubt its a fuel issue once its running...

Tach seems to read correct, WTS light works and shuts off...

Any ideas? LPOP? ICV? CPS?

Thanks again in advance homies!
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Old 06-07-2013, 04:57 AM
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Ok, when I start the truck in the morning, if I stay on throttle at 1500 rpm it will build oil pressure and continue to run. If I let it idle after 5-10 seconds it will die. Once I get passed that stage it runs great, no issues, oil pressure stays up.
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Old 06-07-2013, 06:56 AM
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IPR? ICP? Need to pull codes and see what the ECM thinks.
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Old 06-07-2013, 07:09 AM
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Ill pull codes later today when I get home. Clear them, then see what new ones it throws.
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Old 06-09-2013, 05:25 PM
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Check your oil level. Never use staring fluid in these engines. There are very few things that will kill a 7.3PS and ether is one of them.
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Old 06-09-2013, 06:10 PM
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Could be cps, could be batteries going bad or the starter not turning the engine over fast enough. Doubt it is the lpop. Could be ipr related, could be icp sensor. Might be hpop. Check codes, if any. Get access to scan tool and check icp while cranking. Also, do oil level check. You can unplug the ipr and it makes it go full open and see if there's any difference in starting.

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