Leaking fluid out of exhaust at WOT.....

[joedellavella6_4]

I have a 08 6.4 DPF deleted 5 inch complete, EGR deleted, AFE intake, SCT tuned currently in the canned performance tune. I noticed when i rev it up to WOT fluids running out of the exhaust... it doesnt do it if i give it 3/4 throttle... i dont know if its coolant or fuel didnt smell like fuel... is it something to do with the fuel cooler? this is my first 6.4 so i really dont know what it is. Thanks guys

 

[Gunnnin]

My guess is check your coolant level as running a 6.4 hard without studs leads to blown head gaskets.

 

[sootie]

any smoke? if so-what colour?

 

[joedellavella6_4]

No smoke just little black haze


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[sootie]

check atmo turbo shaft play.

 

[joedellavella6_4]

Hey guys I narrowed it down to definitely loosing coolant from the fuel cooler resivor.... I haven't had much time diagnose any further anyone else have a fuel cooler go bad? I have warranty but don't wanna put exhaust and all that back to stock lol

 

[drunk on diesel]

are you revving it at WOT just sitting there with no load on it? I don't really see how you could see fluid coming out otherwise.

If you're filling your coolant jug to the top fill line, you're going to lose coolant until it levels out down at the revised level.

a fuel cooler has no way of introducing fluid into the exhaust

are you sure you're not just seeing condensation due to cold wet weather?