EGR cooler leaking or not...? - Ford Powerstroke Diesel Forum
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Old 12-02-2011, 04:02 PM
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EGR cooler leaking or not...?

I am in the process of changing out my oil cooler and doing an egr delete. After a few delays in the project I finally got everything out of the truck and now I have questions. I had asked before and did some tests that were recommended from here and thought I narrowed it down to the egr cooler leaking as to why I had coolant blowing out of the degas cap, but now I dont know.

Here is one of the problems I am having, The intake is all gummed up with black wet soot and all the intake ports into the motor have the same wet soot, but after removing the EGR cooler it only has dry black soot, it is not wet in there. So if the intake has black wet soot, but the egr cooler has dry black soot, does that mean that the egr cooler is not leaking or can that still be the problem. If the head gaskets are bad will the intake manifold get wet? Please help me out I dont want to put everything back together only to have to tear it apart again.

Thank you very much for the help.

Will
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Old 12-02-2011, 04:40 PM
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usually when the cooler is bad enough to wet the intake and pressurize the bottle it'll smoke white atleast a little bit from the coolant burning

was your truck smoking at all? failed headgaskets won't smoke in a 6.0

Remember also, the egr cooler gets very hot and it'll be one of the last things to cool down. Sometimes by the time you get it off everything is dried up, the carbon will absorb moisture too.
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Old 12-02-2011, 04:55 PM
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Quote:
Originally Posted by sinner6.0L View Post
usually when the cooler is bad enough to wet the intake and pressurize the bottle it'll smoke white atleast a little bit from the coolant burning

was your truck smoking at all? failed headgaskets won't smoke in a 6.0

Remember also, the egr cooler gets very hot and it'll be one of the last things to cool down. Sometimes by the time you get it off everything is dried up, the carbon will absorb moisture too.
Good point on it dryting up!
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Old 12-02-2011, 06:53 PM
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Sinner,

Thanks for the information. I didnt notice if it was smoking, if it was it was very little.



So if the headgaskets are bad the intake will become wet also?



I was losing very little coolant in the bottle it just seems that the system was getting pressurized and getting blown out the cap. Once the coolant got to about 1" below the minium fill line on the degas bottle it would seem to quit going down and blowing out the cap. It also seemed to be worse on blowing out the cap if I got on it hard or was pulling my trailer.

I thought it was the EGR cooler but now I do not know for sure, I was going to try and finish it up tomorrow, but not sure if the EGR cooler was leaking.


Thanks,

Will
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Old 12-03-2011, 04:55 AM
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Quote:
Originally Posted by fishmanwill View Post
So if the headgaskets are bad the intake will become wet also?
I don't think blown head gaskets will make the intake wet/damp, that would likely be from the EGR cooler.

But after thinking about it... maybe it is possible that with a leaking passenger side head gasket some coolant would make it's way up through the EGR inlet and into the intake manifold.
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