milky color at degas bottle cap???

[korterman1]

After towing my toyhauler I noticed this molly color around the degass bottle is this a indication of EGR. troubles

[NYC F-350]

What does the coolant look like? Any "floaties" in there? Any other evidence of anything else?

[korterman1]

No floaties coolant is low. The dummy guages stayed in the normal range, I know I need guages

[NYC F-350]

Well, the milky substance is typically oil and that would point to a failing oil cooler. Check the oil for the same milky substance. If the oil cooler fails and dumps oil into the coolant, you have a whole bunch of flushing to do post replacement as well as replacing every rubber component in the cooling system since oil will break down the rubber the hoses are made out of.
Yes, you DESPERATELY need gauges. There is a very good set that is rather cheap. Scangauge2 runs about 165 bucks at your local autoparts store. It is actually a very good diagnostic tool considering the cost involved since it can access many existing sensors and systems of the engine (with the proper programming, which is readily available all over the net, here included).

[korterman1]

Thanks going too stealership for a quick look

[NYC F-350]

Ok. so I freely admit I F...ed up on this one. Here I was off doing some work when a little voice in my head says "Hey, idiot! He was talking about a chalky white substance around his degas bottle cap and not the white goop that oil/coolant make!"

Listen, If you see this, you need a new degas bottle cap. Throw the old one out and clean the chalky stuff off. Drive the truck and if it happens again, there is a test to determine if it is a failed EGR cooler. BUT, whenever you replace an EGR cooler, you replace the oil cooler as well. The oil cooler clogs in the coolant passages which robs the EGR cooler of coolant flow and that is why the EGR cooler fails.

My apologies for my brain-fart moment of the week.

[Evil Eye]

Originally Posted by NYC F-350

Ok. so I freely admit I F...ed up on this one. Here I was off doing some work when a little voice in my head says "Hey, idiot! He was talking about a chalky white substance around his degas bottle cap and not the white goop that oil/coolant make!"

Listen, If you see this, you need a new degas bottle cap. Throw the old one out and clean the chalky stuff off. Drive the truck and if it happens again, there is a test to determine if it is a failed EGR cooler. BUT, whenever you replace an EGR cooler, you replace the oil cooler as well. The oil cooler clogs in the coolant passages which robs the EGR cooler of coolant flow and that is why the EGR cooler fails.

My apologies for my brain-fart moment of the week.

Wow, I didn't even notice that until your post made me re-read the thread title! Well, that makes two of us in the "brain fart" boat. Pass the popcorn because this is gonna get good. We'll see how many others get in the boat with us...

PS. To the OP, both posts are great advice, and please keep us posted.

[PGreenSVT]

Originally Posted by NYC F-350

Ok. so I freely admit I F...ed up on this one. Here I was off doing some work when a little voice in my head says "Hey, idiot! He was talking about a chalky white substance around his degas bottle cap and not the white goop that oil/coolant make!"

Listen, If you see this, you need a new degas bottle cap. Throw the old one out and clean the chalky stuff off. Drive the truck and if it happens again, there is a test to determine if it is a failed EGR cooler. BUT, whenever you replace an EGR cooler, you replace the oil cooler as well. The oil cooler clogs in the coolant passages which robs the EGR cooler of coolant flow and that is why the EGR cooler fails.

My apologies for my brain-fart moment of the week.

Don't feel bad, based on the title to this thread that was my first thought too.