2006 f250 slow cranking - Ford Powerstroke Diesel Forum
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Old 11-20-2012, 02:07 PM
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2006 f250 slow cranking

I just replaced my EGR cooler and Oil cooler on a 2006 6.ol
it went bad while i was driving. when i took apart, i had coolant in the turbo , now that it is back together, it cranks really slow, I just replaced the batteries and still does the same thing. any ideas??
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Old 11-20-2012, 04:17 PM
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Quote:
Originally Posted by Camp1246 View Post
I just replaced my EGR cooler and Oil cooler on a 2006 6.ol
it went bad while i was driving. when i took apart, i had coolant in the turbo , now that it is back together, it cranks really slow, I just replaced the batteries and still does the same thing. any ideas??
Disconnect the batteries, and put them on a slow charge overnight, individually.

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Old 11-21-2012, 10:02 AM
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still the same thing, could there be left over coolant in the cylinders , making it crank slow??
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Old 11-21-2012, 10:17 AM
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Originally Posted by Camp1246 View Post
still the same thing, could there be left over coolant in the cylinders , making it crank slow??
Short answer, no, coolant would cause it to lock up, if it was enough. Cables, batteries, starter, ac compressor locked up..........

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Old 11-21-2012, 11:11 AM
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I guess the big question is how slow is slow? If it is barely turning over the previous suggestions may find the problem. If it is not the power to the starter, then this is what you should do next.

It is possible to have fluid in the cylinder and a blown head-gasket causing the slow crank, but hydro-lock would be more probable. Damage would certainly be catastrophic if the engine were to fire up in this condition. Check your oil! Take a quick sample and re-plug. If you have coolant in there, it is possible you may have done more damage than you thought; head-gasket, rings and piston damage. The easiest way check for fluid in the cylinders is to remove glow plugs and try to crank. You would want to disconnect the FICM or just by-pass to the starter so it wouldn't start.

I hope it is the power/connections to the starter or even just the solenoid or starter.
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Old 11-25-2012, 12:58 PM
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I loosened the fan belt and cranked... still slowly, I then replaced the starter and still no chamge...... what next???
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Old 11-25-2012, 01:18 PM
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Originally Posted by Camp1246 View Post
I loosened the fan belt and cranked... still slowly, I then replaced the starter and still no chamge...... what next???
At this point, it seems you may have a bent rod, or two.

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