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Weird slobbering sound from exhuast help

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Old Feb 4, 2024 | 09:53 PM
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Broesky's Avatar
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From: Wetaskiwin
Weird slobbering sound from exhuast help

09 Fit with 65000km on it. Just had it fully serviced at Honda. I have not checked the plugs yet. See video link below hopefully it works.

https://youtube.com/shorts/IujB0qu_eyo?si=x35wiLJtOg8LbCyB
 
Old Feb 5, 2024 | 08:46 AM
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Assuming you don't hear any weird noises at the engine, my bet would be that you have debris in your muffler. This might come from:
1) rodent nesting material - more likely if your car sits for extended periods
2) bits of a ruined catalytic converter working their way out of the system

You presumably want to know what to do about it. If it's nesting material, revving the engine up should blow some of it out, which will be pretty obvious on your snowy background. If you can get the car in the air, tapping/banging on the exhaust system should produce the tell-tale sound of debris rattling around inside if that's what you have. If it's bits of metal from the catalytic converter, you're probably not going to get it out without cutting up the exhaust.

 
Old Feb 5, 2024 | 08:59 AM
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From: Wetaskiwin
Originally Posted by Drew21
Assuming you don't hear any weird noises at the engine, my bet would be that you have debris in your muffler. This might come from:
1) rodent nesting material - more likely if your car sits for extended periods
2) bits of a ruined catalytic converter working their way out of the system

You presumably want to know what to do about it. If it's nesting material, revving the engine up should blow some of it out, which will be pretty obvious on your snowy background. If you can get the car in the air, tapping/banging on the exhaust system should produce the tell-tale sound of debris rattling around inside if that's what you have. If it's bits of metal from the catalytic converter, you're probably not going to get it out without cutting up the exhaust.
Ya at first I thought it was water in the exhuast, it's sounds like it gurgling or something. I wacked the throttle a bunch nothing blew out the back. You can see under the tip a melted spot in the snow on the ground. Maybe i should park up a steep hill and Rev it a bunch. If its water why would it be in the exhuast?
 
Old Feb 5, 2024 | 09:16 AM
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It's quite common to have water in the exhaust, especially in cold conditions as seen in your video. When you've been driving the exhaust is hot; when you stop water from the environment condenses on and inside the exhaust (an in your case, probably freezes). The next time you start driving that water comes out of the exhaust.
The same thing happens inside the engine, which in the winter is sucking very cold air into a very hot environment. When you start the engine and it begins to warm up that moisture passes through the exhaust system. This is one of the reasons why short trips are hard on cars, especially in the cold. If you don't keep the engine warm long enough to get rid of the water, it builds up and contaminates your oil.
To add to my previous answer, it's possible that you have a bunch of moisture in your muffler that isn't evaporating out. Do you do a ton of short trips?
 
Old Feb 5, 2024 | 11:01 AM
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From: Wetaskiwin
Originally Posted by Drew21
It's quite common to have water in the exhaust, especially in cold conditions as seen in your video. When you've been driving the exhaust is hot; when you stop water from the environment condenses on and inside the exhaust (an in your case, probably freezes). The next time you start driving that water comes out of the exhaust.
The same thing happens inside the engine, which in the winter is sucking very cold air into a very hot environment. When you start the engine and it begins to warm up that moisture passes through the exhaust system. This is one of the reasons why short trips are hard on cars, especially in the cold. If you don't keep the engine warm long enough to get rid of the water, it builds up and contaminates your oil.
To add to my previous answer, it's possible that you have a bunch of moisture in your muffler that isn't evaporating out. Do you do a ton of short trips?
Thanks for the help man. Its half and half. Half highway half in town. Although sometimes my car is parked and idles alot like yesterday when I shot that vid. That explains with what you were saying.
 
Old Feb 5, 2024 | 05:50 PM
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I did not watch your video but I get water in the exhaust. Keep in mind that when you combust fuel with oxygen, you're going to get two main byproducts: carbon dioxide and water. Your body works the same way combusting sugar for fuel: and you exhaust from your breath both of those items, yea? C02 and water. So especially when the car is cold you can see the exhaust spitting water, which is the condensed water vapor. Driving up a hill should drain most of it out.


​​​​​​Amusingly this is also the answer to the question, "when you lose weight, where does it .. go?" The answer is a small amount is released as energy and heat, but mostly, you breathe it out as water and carbon compounds.
 
Old Feb 23, 2024 | 12:09 AM
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Originally Posted by Broesky
09 Fit with 65000km on it. Just had it fully serviced at Honda. I have not checked the plugs yet. See video link below hopefully it works.

https://youtube.com/shorts/IujB0qu_e...5wiLJtOg8LbCyB
You have water in your muffler. You need to drill a drain hole in the lowest point of your muffler case. It doesn’t need to be huge, just enough to allow the water to drain out. I’d start by making a hole about 1/4”. Assuming it’s the stock muffler, it won’t have any negative side effects regarding function or durability. I think you’ll be shocked how much water pours out of there.
 
Old Feb 23, 2024 | 12:16 AM
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From: Wetaskiwin
Originally Posted by squareback
You have water in your muffler. You need to drill a drain hole in the lowest point of your muffler case. It doesn’t need to be huge, just enough to allow the water to drain out. I’d start by making a hole about 1/4”. Assuming it’s the stock muffler, it won’t have any negative side effects regarding function or durability. I think you’ll be shocked how much water pours out of there.
Will do. Thanks for the pointer!
 
Old Feb 23, 2024 | 12:33 AM
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Originally Posted by Broesky
Will do. Thanks for the pointer!
I’ve had that on a couple of cars myself. If you can, come back here after you’ve done that and give us an update.
 
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