Another problem?!!! Suspicious puddle this morning
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Thread: Another problem?!!! Suspicious puddle this morning

  1. #1
    Join Date
    Jan 2015
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    Default Another problem?!!! Suspicious puddle this morning

    I came back from church this morning and saw this suspicious puddle as I was pulling into my garage. It is directly under the exhaust pipe, and also about a 1.5 feet back from the pipe. I consistently park my car in the same location every time.suspiicious puddle.jpg

    I haven't seen this puddle ever before. It is not from melted ice or snow from the car. We haven't had any snow for the past 2 weeks. The puddle is black, so if it is water, it is dirty water. I think it is just water, probably condensation from the exhaust when I preconditioned the car this morning before leaving for church. It was about 5 degrees F. this morning. I didn't notice the puddle as I got into the car to leave, however, I did smell a slight burnt rubber smell when I got into the car. I assumed it was the normal burnt smell which is caused by a new engine burning off some of the coatings from the manufacturing process. Now I'm not so sure.

    Is this anything to be concerned about?
    2017 LT, Heather Grey Metallic

  2. #2
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    Default

    Maybe there's a weep hole in the muffler.
    2014 Volt, Brownstone Metallic, Loaded.
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  3. #3
    Join Date
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    That looks like exhaust condensation that in an ICE vehicle pretty much gets burned off but in a Volt the ICE and exhaust seldom operate enough to burn it all out of the ehaust. There is a weep hole the allow all that build up to drip out to help extend the life of the exhaust system.

    That's my guess.
    Tom aka Accidental Electronaut
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  6. #4
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    Default

    Aside from shock absorber fluid or gas, neither of which would leave a stain like that, I would say it is just normal dripping, moisture off the car. It may have been there longer than you think. Look at the salt staining around it. It used to be a bigger puddle then what you are looking at. My guess is that it was a chunk of ice frozen under the car that finally melted enough to fall out from somewhere. Even from the front.
    Scott.

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  7. #5
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    Default

    It's water from combustion in the ICE dripping out of the exhaust.

  8. #6
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    Default

    Thanks all, that's what I thought as well, just wanted to make sure though. With all of the problems that I've been experiencing, I'm probably more worried than I should be!
    2017 LT, Heather Grey Metallic

  9. #7
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    Quote Originally Posted by BAZINGA View Post
    That looks like exhaust condensation that in an ICE vehicle pretty much gets burned off but in a Volt the ICE and exhaust seldom operate enough to burn it all out of the ehaust. There is a weep hole the allow all that build up to drip out to help extend the life of the exhaust system.

    That's my guess.
    I agree with this one.
    Joe

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  10. #8
    Join Date
    Jan 2016
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    Michigan
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    Common to direct injected (DI) engine is sooty (black soot) deposit covering the exhaust - which contaminates the condensation that builds up within the exhaust pipes, hence the blackish water that trickles out.

  11. #9
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    Thanks kichiew for that explanation...I knew the black puddle wasn't just from road ice. Now it makes sense. On one hand I'm glad that it is normal, on the other hand, I wish I didn't have black puddles forming!
    2017 LT, Heather Grey Metallic

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  13. #10
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    Its mostly water formed by the catalytic converter activity
    Not really anything to worry about, but I agree once the water is contaminated by soot in the exhaust system. it can be a little messy
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