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  #1  
Old 11-30-2010, 04:30 PM
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Thumbs down Head Gasket? Losing Coolant..

Hey guys I'm thinking my head gaskets are done. I'm losing coolant after I fill it to max line.
When I change the oil there's also some in there...

A little history...when I bought my truck it seemed quick, but didnt know much about diesels..
Turns out for around a year I did have some sort of tune on it, but no gauges. I'm thinking it may have been pused a little too hard by a (back then) inexperienced driver...me lol.
The dealer flashed the computer last summer and I noticed a power loss (back to stock)

Do you guys think it's the head gaskets? Are they decent to change on a 7.3?
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Old 11-30-2010, 07:21 PM
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first stop driving it before something really gets worse... are you getting any white smoke out the exhaust? how much extra are you getting when you drain the oil?
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Old 11-30-2010, 07:45 PM
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7.3 head gaskets are famously strong. But they can and do go, of course.

Search around on oil cooler failure, that's a possibility. Also cavitation, but let's hope that ain't it.

Good luck!
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Old 12-02-2010, 06:24 AM
Once you go black......

 

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There's never any white smoke, that's mainly why I never thought it was HGs, i guess. I'm on holidays right now but I'm thinking of tearing the engine apart when I get home. Its not being driven right now anyways.
Is it a huge deal to replace them?
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Old 12-02-2010, 12:49 PM
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Furthest I've gone in is to remove the valve covers to do the 50 cent mod. As I recall the remainder looked pretty standard V8 as far as getting the heads off.

But that's a he11 of a lot of work wasted if that is not the problem. I'd research pretty deep all the symptoms and get a solid diagnosis before tearing it down. My 2 cents.
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