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Old 12-02-2019, 11:44 AM   #1
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Small drip

Have a small drip coming from this weld spot. The hoses go up to radiator even though the fluid is "clear". Its a not a constant drip just a very slow little amount. I thought it was DEF fluid at first.
Question is, will some JB weld water sealant epoxy fix it for now until i can get it looked at by a cummins shop.Click image for larger version

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Old 12-02-2019, 01:15 PM   #2
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Id say yes any epoxy once its thoroughly cleaned with the minor caveat that I dont know what it is or what fluid is leaking
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Old 12-02-2019, 02:08 PM   #3
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That box is directly below the radiator. 2 hoses on each end go up to radiator and engine.
Its clear, not like the color of radiator fluid.
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Old 12-02-2019, 03:36 PM   #4
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Quote:
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That box is directly below the radiator. 2 hoses on each end go up to radiator and engine.
Its clear, not like the color of radiator fluid.
Like water probably? Id say thats likely a heat exchanger, like an aux cooler on a fire engine, but in reverse, providing hot water while the engine is running. So not a big threat to anything that matters. JB Weld works for me, but you should confirm my scientific wild guess....

You could always follow the lines back if they are visible and if they lead to your hydronic thingy (you have one of those, right?) then it’s a lock.

What kind of coach are we talking about? Or is it a fire engine? You could put the year and model# in a sig line and then everyone would know what we are working with like this:
V
|
|
V
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Old 12-02-2019, 04:00 PM   #5
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2019 fleetwood discovery. And yes it has aqua hot syatem
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Old 12-02-2019, 04:34 PM   #6
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2019 fleetwood discovery. And yes it has aqua hot syatem
So thats probably what it is and under warranty which is also nice.
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Old 12-02-2019, 08:31 PM   #7
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That's alot of rust for a 2019.

And that is your transmission cooler. Should have 4 lines. Water in/water out on ends and 2 lines in the middle section to the trans.
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Old 12-03-2019, 09:43 PM   #8
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So how does that work water wise. Where does water come from and is it any type of fluid leaking
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Old 12-04-2019, 07:11 AM   #9
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It's a heat exchanger. Engine coolant runs around tubes, trans fluid runs through tubes.

The leak could be coolant or trans fluid. Coolant or oil...one would have to determine on site with touch, smell and taste tests.
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