Coolant Sludge??

[couch]

I have a 10' f250 which isn't using any coolant. Coolant and oil temps are stable during driving, but there seems to be a sludge building up in upper part of degas bottle I'm still under warrenty so was wondering what this might be been tuned since 1800mi have 29k on now. Thanks

[wilsonw2]

Pics please. "sludge" can mean different things to dif people.


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[atwoojr]

Originally Posted by wilsonw2

Pics please. "sludge" can mean different things to dif people.


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I agree with the pics needed. Is it like a hardness buildup, that you would see on like maybe a showerhead, a slightly see through scale on the degas bottle? When I think of sludge, I think of like a mud water mix....So we need a little more....

[couch]

I'll try to get you pics hard to get inside of degas bottle. It's like a brown staining on inside of degas where coolant level is when hot. Above cold fill range.

[04hdfatboy]

Like stated above it can be several things. Could be a leaking oil cooler or it could be rust or scale. Either way i would recommend a coolant filter.

[couch]

Update I fished a long q-tip in there and it's a black and oily not scaly. So what would cause oil in degas bottle?

[srjd]

Most likely you need a new oil cooler do you have anything to monitor eot and egt

[itn69]

In my 7.3, oil in the coolant was an oil cooler.


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[couch]

Yeah have a cs from edge oil and coolant always in the mid 190's. Crawled up and looked in the degas looks more like a red/brown scale in the bottle with a couple area's dirty black. Guess it's time to put the DPF back on and to the dealer. Any way to check oil cooler??

[04hdfatboy]

You can monitor the difference between the coolant and oil temps. If oil is in the coolant is more than likely and oil cooler failure.