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Old 05-19-2016, 01:52 AM   #1
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Muffler on E450 leaking moisture.

Has anyone had this problem. You know when you first start a vehicle, moisture usually comes out of the exhaust pipe. That is normal. But when I have moisture dripping on the ground just below muffler, there is something wrong. Looks like it is coming out of the seams of the
muffler. Won't take long for this to rust out along with a major exhaust leak. Guess I need to take this problem to Ford and not CW. Our unit is less than a year old.
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Old 05-19-2016, 05:22 AM   #2
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Many/most mufflers have drain holes for condensation. This is probably "leaking" by design.

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Old 05-19-2016, 06:49 AM   #3
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Many/most mufflers have drain holes for condensation. This is probably "leaking" by design.

Bruce
X2 That's the norm so they do not rust out too fast. Even the stainless ones have a small drain hole.
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Old 05-19-2016, 06:54 AM   #4
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normal. Don't worry about it.
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Old 05-19-2016, 11:07 AM   #5
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Yep every vehicle we have has a weep hole at the bottom of the muffler. Better to let the water out than to stay in the muffler.
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Old 05-19-2016, 11:10 AM   #6
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It is not uncommon for moisture to leak from a muffler, pipe joint or any other area that is joined in some way. It is the nature of the beast.
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Old 05-19-2016, 12:54 PM   #7
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All newer vehicles drip.
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Old 05-19-2016, 01:55 PM   #8
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All newer vehicles drip.
It's been that way for as long as the hills are old. As was said, it's a drain hole to let all that acidic water drain out so the muffler doesn't rot prematurely. Be glad it's doing it's job.
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Old 05-19-2016, 02:18 PM   #9
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Our 2015 F-150 has weep holes to let any pooled moisture drip out instead of sitting in the muffler and rusting it out faster. After coming from much older vehicles that didn't have them it was a surprise when I first saw the little puddles but it made sense once I found out what they were for.
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Old 05-19-2016, 04:10 PM   #10
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Water is one of the results of the chemical reaction that occurs when exhaust gasses pass through the catalytic converter, much of which gets caught in the muffler. Since the muffler is so far from the engine (especially in one of our units), it doesn't get hot enough to boil off the water that it catches...hence the weep holes.
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