Leaking head gasket
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Cross-Country
Joined: Oct 2005
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From: dahlonega Ga.
Leaking head gasket
my 2004 6.0 has lost some power and the head gasket is leaking into the coolant. How long can i continue to drive the truck before too much damage is done to the engine?
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Joined: Jan 2016
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I depends on what kind of failure you have. I ran 4-5 days and 1500 miles on mine because I was on the road and had a schedule I had to keep. I didn't have any contamination and was only losing about half of the coolant in my degas bottle every other fill up. Monitored my temps close and babied it and I didn't have any other damage. Heads were fine, no overheating, just a HG repair.
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Cross-Country
Joined: Oct 2005
Posts: 83
Likes: 11
From: dahlonega Ga.
I have been loosing coolant slowly , notice a couple of weeks ago my horse power has been reduced
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Senior User
Joined: Jan 2016
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Losing coolant is one thing, but if you have a contamination you should really stop driving it.
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From: L.A. (Lower Alabama)
It's common for shop to diag all manner af 6.0 issues as being headgaskets. Of course with your coolant loss they may very well have failed also but, oil in the coolant is a failed oil cooler. It's very possible (and common) that you need both the oil and EGR coolers, much less work and expense than headgaskets.
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Joined: Feb 2011
Posts: 8,241
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From: L.A. (Lower Alabama)
Lots of options for an oil leak up top, oil pressure sending unit, cracked oil cooler cover or just a leaking seal. All of that is coming apart during repairs anyway.
I'd pull the EGR valve and look for coolant in the intake manifold that would indicate the EGR cooler is leaking.
I'd pull the EGR valve and look for coolant in the intake manifold that would indicate the EGR cooler is leaking.
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