2006 6.0L Diesel White Smoke

[Gervais]

I need input...

I took the Diesel to a shop and had them to a diagnosis...

They said blown head gaskets. But I've been told by other people it's most likely the EGR cooler. I don't know how the head gaskets are bad because the truck was running fine until the thermostat went bad. So I replaced the thermostat about two weeks ago. After I replaced the thermostat it started blowing white smoke. It doesn't feel as if I have a power loss.

Input from anyone would be appreciated. Is there a way to determine which it is without stripping the whole motor down?

[Gervais]

Also when the thermostat went bad... I didn't over heat the truck badly. It did run a little hot, but I slowed down and the truck cooled down. It never got into the red.

[Horsestrokin]

Don't drive it man....you dont want blown headgaskets if it hasnt yet happened

[Gervais]

Well it's not over heating anymore... Still I'm not driving it. I'm actually probably selling it today.

[Foamy]

Well I took my truck into the dealership for some puking coolant. No white smoke that I could see(it was -20°c roughly) so quite hard to tell. Turns out that my head gaskets were shot, egr cooler/valve are toast and getting new bed plate seals(think thats the name) while its down. Warranty thankfully, but the dealer is not mad friendly and would not install arp studs in place of the stock bolts.

The truck never over heated, never noticed any smoke aside from a steam like substance when it coated the entire underside of my truck in coolant. No loss of power or any other symptoms.

[Gervais]

Yikes... that would have been a pricey repair. I contacted my local Ford dealer and they said head gaskets would run about 8k and EGR cooler would run about 4k.

[Evil Eye]

Is it covered under warranty? Did you decide to sell?

[Horsestrokin]

Originally Posted by Foamy

Well I took my truck into the dealership for some puking coolant. No white smoke that I could see(it was -20°c roughly) so quite hard to tell. Turns out that my head gaskets were shot, egr cooler/valve are toast and getting new bed plate seals(think thats the name) while its down. Warranty thankfully, but the dealer is not mad friendly and would not install arp studs in place of the stock bolts.

The truck never over heated, never noticed any smoke aside from a steam like substance when it coated the entire underside of my truck in coolant. No loss of power or any other symptoms.

Did it puke only under load, or even on normal driving conditions?

[StrictlyDiesel]

My EGR valve stuck open last year, blew one of the coolant lines in the EGR and it was spewing out white smoke...and i mean SPEWING! So if its blowing white smoke then get ready to spend about $4000 because its your EGR.

The fix is a new EGR cooler, valve, oil pump, a handfull of clamps and seal kits, and 18 hrs of labor from Ford. Or buy a delete kit and do it yourself...

SRY, been there