6.0 won't crank - Ford Powerstroke Diesel Forum
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Old 08-07-2013, 04:54 AM
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6.0 won't crank

I made this because one of my buddy's has a 6.0; it won't start, when you go to try to start it it turns over then acts like it wants to fire; but then goes back to a steady turning over. If we spray WD-40 in the intake tract it will fire right up and it's 100% drivable, anyone have any answers? The truck is 100% stock and never had even a tune on it.
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Old 08-07-2013, 04:59 AM
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First off, spraying WD-40 in the intake is a bad idea. It's not extremely flammable, but you could still blow the motor.

Secondly, it does crank, it doesn't fire.

Does this happen all the time? Just warm, just cold???
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Old 08-07-2013, 05:10 AM
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If you let it sit it sometimes will start but right now it just keeps turning over and won't fire at all it does it no matter what
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Old 08-07-2013, 05:12 AM
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Have any way to see any data?

Need to check FICM, HPO, LPO, sync.

Also, check for fuel pressure and flow. Is there oil and fuel in the filter housings? OEM Filters?
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Old 08-07-2013, 05:17 AM
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Well we think it could be the FICM but how could you see if its the HPOP?
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Old 08-07-2013, 05:20 AM
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FICM likely wouldn't work with spray in though.

HPOP you need a scanner of some sort or a manual gauge that can go to 5000 PSI and put it in the ICP port.

Since it is starting like this warm, and works once it sits it's possible you have an HPO leak. That can be verified by seeing ICP and IPR data. Then it's locating the leak. What year truck?
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Old 08-07-2013, 05:21 AM
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It's a 2004 so you think it has something to do with the high pressure oil pump?
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Old 08-07-2013, 05:22 AM
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Not the pump, but a fitting or o-ring.

Is the ICP sensor on the passenger side valve cover?
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Old 08-07-2013, 05:29 AM
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Yes on that particular truck I believe so. Are you thinking its possibly the cause of not wanting to crank all this happened right after we changed the alternator and batteries I don't know if its a mere coincidence or what
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Old 08-07-2013, 05:43 AM
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Could be and without any real data I'm only guessing.

Just to clarify, it spins the motor, it just doesn't fire up right???

Was the alternator not charging at all before? If so it easily could have fried the FICM.
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