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Old 09-10-2009, 02:45 PM   #1
vmantunes
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Diesel Fuel in Coolant

Why is there fuel in my coolant resevoir??

2005 FORD F-350 6.0 Power Stroke

vmantunes

Last edited by vmantunes; 09-10-2009 at 02:51 PM.
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Old 09-10-2009, 02:54 PM   #2
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cracked head!
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Old 09-10-2009, 02:57 PM   #3
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What else might be causing it???

cracked head... or???
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Old 09-10-2009, 03:00 PM   #4
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as far as I know only a cracked head will cause this. maybe other members will chime in with any other info.
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X-3 tunes by DJ,QT,GH,ID,Gyphon FICM tuner,head studs,II Stage 1turbo,ATS coolant recirc lines,Swamp's 48v ficm,coolant filter,Snow Perf stage II,EGR delete,AD2,4" turbo back straight pipe,K&N intake,Quad "A" pillar autometer gauges,Suncoast Tri Disk Conv.,Billet input shaft,Suncoast superduty rebuild kit,Trans-go shift kit,Mag-Hytec trans pan,CFM+ elbow,ccv mod,15K reese 5er,17" LCD TV/DVD,Cobra 29 Nitewatch CB
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Old 09-10-2009, 03:33 PM   #5
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Maybe a bad injector and a blown HG? How does it run? Smoky? Low power? Any other symptoms other than you can see fuel floating on the water in your coolant reservoir?
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Old 09-10-2009, 03:46 PM   #6
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No problems... no smoke, no loss of power... just the fuel in the coolant resevoir which spews out when the engine is hot

what is an HG??
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Old 09-10-2009, 04:05 PM   #7
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head gasket. Sometimes, when an injector goes, it dribbles fuel out into the cylinder. If you have a bad head gasket, it could leak in there. But a cracked head is more likely. I guess, before we go nuts on this diagnosis, how much fuel is in there? And you are positive it is fuel?
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Old 09-10-2009, 04:12 PM   #8
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I am positive it is fuel...

at first i thought a fuel line was punctured (only because i was never able to open the coolant resevoir because the engine was always hot). the trucks been stopped for a few days so i finally got around to opening the cap.

I am positive it is fuel... how much fuel?? i don't know... probably more than a 50/50 mix in the resevoir itself, but its hard to say.
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Old 09-10-2009, 06:33 PM   #9
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A faulty injector cup could cause this.
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Old 09-10-2009, 06:51 PM   #10
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Quote:
Originally Posted by strokin6L View Post
A faulty injector cup could cause this.
Yup, I wouldn't just jump to a crack headed, thats pretty expensive to fix, O-ring ain't nothing to fix, its like a 1-3 dollar part.
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