6.4 rough cranking - Ford Powerstroke Diesel Forum
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Old 12-09-2013, 06:31 PM
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6.4 rough cranking

Was driving down the road cruise set and truck just died. It was about 4 degrees so just assumed it was gelled fuel. Treated the fuel and changed filters now it wont start. Had it towed to my shop to sit inside overnight. cycled key countless times now and still no start. When cranking over it will crank for about a second then catch almost like hydrolock then it moves past and does it again. Now I noticed raw fuel coming out of the exhaust pipe. No codes or check engine. Not sure where to go from here other that dealer and really dont like that idea.

Any suggestions would be much appreciated. Thanks
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Old 12-09-2013, 06:48 PM
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You got problems.

If raw fuel is coming out the tailpipe during crank I would guess you have an injector that is pissing fuel out.
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Old 12-09-2013, 06:49 PM
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Pull all glow plugs out and crank the motor over to identify what cylinder is filling with fuel.
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Old 12-09-2013, 06:51 PM
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That is what I thought too. I figured it'd still run though. Just really crapy. Maybe I'm wrong on that.
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Old 12-09-2013, 06:53 PM
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I'll give it a shot. Doesn't sound like much fun. Thank you.
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Old 12-11-2013, 04:11 PM
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Changed one injector that was stuck open. Put it all back together started and ran like crap then died and won't start back up.
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Old 12-11-2013, 04:12 PM
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Now my lift pump runs continuously.
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Old 12-14-2013, 07:19 AM
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Where are you located?
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Old 12-14-2013, 07:21 AM
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Des Moines Iowa
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Old 12-14-2013, 07:22 AM
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Did some checking. I have 1200 lbs of rail pressure is that enough? And does a bad hpfp always throw a code?
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