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Fluid leaking through exhaust

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Old Sep 9, 2022 | 10:42 AM
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Fluid leaking through exhaust

A little while back I noticed what I believe to be oil leaking through one of the joints in my exhaust system. I assumed a failed turbo oil seal and contacted my local Ford dealer. Ford was not able to get my truck in for almost a month, which finally happened yesterday. Once they got it in and inspected it, they said they found no trace of oil in the exhaust and that the substance I saw was water mixed with soot. They billed out an hour's labor, gave my truck a clean bill of health and sent me along my merry way.

I've been doing 99% of my own work on anything I own with a motor for around 25 years now, and I feel like I have a pretty good idea of what oil looks like. That said, I'll just assume that Ford's assertion that I was seeing water mixed with soot is correct, which leads me to ask how am I getting water inside my exhaust system? Coolant levels are fine. No sign of any external fluid leaks anywhere. Could the fluid I saw have just been an odd coincidence, or is the dealership that inspected my truck giving me the run around? The work order states that the hot side charge pipe and downpipe were removed to inspect for oil.
 
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Old Sep 9, 2022 | 11:58 AM
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condensation can be a cause
 
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Old Sep 10, 2022 | 11:09 AM
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Water is a byproduct of combustion. If the exhaust is not hot enough to turn it to steam it will condense and drip out until temps are up. Was the truck full
hot when you saw it, or had you just started it?
 
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Old Sep 12, 2022 | 08:45 AM
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Could it have been DEF mixed with soot?
 
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