6.4 blowing white smoke... help please - Ford Truck Enthusiasts Forums



6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis

6.4 blowing white smoke... help please

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Old 12-26-2013, 03:12 PM
chesterstroker chesterstroker is offline
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6.4 blowing white smoke... help please

We are on the way to Colorado pulling four place enclosed and my truck started running rough and blowing a lot of white smoke. I got it limped two miles to nearest truck stop. Minimaxx shows cylinder eight and cylinder one contribution codes. Oil level is good but coolant is low. The drivers side of engine looks wet but I can't tell for sure what it is. All vitals were normal up to this. Truck has dpf delete and mini maxx on it. Any ideas? Does this sound like a failing egr cooler?
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Old 12-26-2013, 04:42 PM
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Sounds like the egr cooler to me.
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Old 12-26-2013, 05:20 PM
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Is there coolant coming out of the degas bottle?
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Old 12-26-2013, 05:43 PM
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EGR coolers. Don't drive it and risk a hydrolock.
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Old 01-01-2014, 05:40 PM
chesterstroker chesterstroker is offline
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Originally Posted by 9228.bobcat View Post
Is there coolant coming out of the degas bottle?
There isn't any coolant coming out of degas bottle. What is the easiest way to check for ruptured egr cooler? I have the delete kit at home already. Maybe I'll just install the delete and see how it runs...
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Old 01-01-2014, 07:15 PM
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Were you using a stock tune, or EGR disable tune?
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Old 01-01-2014, 08:21 PM
chesterstroker chesterstroker is offline
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Were you using a stock tune, or EGR disable tune?
Running disable tune with minimaxx
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Old 01-02-2014, 12:18 AM
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Originally Posted by chesterstroker View Post
There isn't any coolant coming out of degas bottle. What is the easiest way to check for ruptured egr cooler? I have the delete kit at home already. Maybe I'll just install the delete and see how it runs...

How did you determine this? To me this sounds like a case of blown head gasket. Low coolant, wet engine bay, white smoke.


No matter what it is, there is obviously a problem, and I seriously doubt just adding the dpf delete is going to solve whatever is going on.
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Old 01-05-2014, 09:02 PM
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Compression test you don't loose compression through the erg cooler.
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Old 01-11-2014, 09:33 PM
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Ok guys, here's the update on my truck. I got it towed home and in my garage. Installed egr cooler delete just because I already had it and was going to do it anyway...did not fix my problem I checked compression on number eight and have zero. Pulled glowplug and looked through hole with borescope...piston cracked all the way across top. Truck still ran when I pulled it into garage but smelled very strong raw diesel out of exhaust. What do you suppose caused this to happen? Im guessing number eight injector stuck open. Im going to pull the motor and rebuild with head studs and all new pistons. Can these injectors be bench tested out of the truck. I don't want to worry about this happening again but I really don't want to replace all eight injectors if I don't have to. Sorry for the long winded post. I have rebuilt tons of gas engines but this will be my first diesel. I wanna do it right because I really love this truck and plan on keeping it for awhile. Any advice on engine parts or vendors are greatly appreciated.

Thanks in advance, Jamie

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