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#2426852 - 11/06/11 02:39 PM black soot out of exhaust
Dakota1820 Offline
formerly chevyboy14


Registered: 04/28/11
Posts: 3894
Loc: missouri usa
I've noticed on my Saturn that it blows out dirty black soot. It leaves a black stain on the ground them size of a baseball when reviving up. Sometimes its more than that . What would cause that? Please help thanks guys
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2004 Honda civic vp -m1 5w30
1998 Saturn sl2 -mobil super 5000 5w30


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#2426868 - 11/06/11 02:57 PM Re: black soot out of exhaust [Re: Dakota1820]
spasm3 Offline


Registered: 05/30/10
Posts: 6392
Loc: out there
well, you said it burns a lot of oil right?
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#2426875 - 11/06/11 03:12 PM Re: black soot out of exhaust [Re: Dakota1820]
JHZR2 Offline



Registered: 12/14/02
Posts: 38279
Loc: New Jersey
My 135i burns no oil but Ive noted soot on the tailpipe when running TCW3!

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#2426876 - 11/06/11 03:12 PM Re: black soot out of exhaust [Re: Dakota1820]
Turk Offline


Registered: 02/03/06
Posts: 9103
Loc: MN
Mine spits out small black spots too.

Are they spots that add up to the area of a baseball or baseball sized spots?

Post a pic of your spots! LOL
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#2426881 - 11/06/11 03:17 PM Re: black soot out of exhaust [Re: Dakota1820]
Dakota1820 Offline
formerly chevyboy14


Registered: 04/28/11
Posts: 3894
Loc: missouri usa
Happy bday. Base ball size diameter size LOL any Idea why they do that
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2004 Honda civic vp -m1 5w30
1998 Saturn sl2 -mobil super 5000 5w30


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#2426914 - 11/06/11 04:05 PM Re: black soot out of exhaust [Re: JHZR2]
mongo161 Offline


Registered: 07/11/10
Posts: 3569
Loc: Coney Island, NY
I used to have some black soot on the tailpipe when I first started using TC-W3 but that has long passed....no more soot.

IMO....the soot in the beginning, at least for me, was carbon deposits in the combustion chamber being burned off and out of the engine.

I consistently use TC-W3 in every tank fill-up of gas with a mix of Chevron Techron fuel system cleaner. Three ounces of each mixed and added to 14-15 Gallons of gasoline.

Originally Posted By: JHZR2
My 135i burns no oil but Ive noted soot on the tailpipe when running TCW3!
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#2426920 - 11/06/11 04:12 PM Re: black soot out of exhaust [Re: Dakota1820]
mongo161 Offline


Registered: 07/11/10
Posts: 3569
Loc: Coney Island, NY
From what I've read, Saturn's are notorious for burning lots of oil. So this is most likely natural.....for a Saturn.
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#2426925 - 11/06/11 04:19 PM Re: black soot out of exhaust [Re: Dakota1820]
needsducktape Offline


Registered: 05/08/11
Posts: 820
Loc: Sacramento CA
After I broke my leg, I didn't drive for about 2 months, upon start up the snow behind my car was black as death- but after a day of driving again, it was fine. -If your car hasn't been driven in a long time, I wouldn't worry too much
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#2426946 - 11/06/11 04:37 PM Re: black soot out of exhaust [Re: Dakota1820]
Dakota1820 Offline
formerly chevyboy14


Registered: 04/28/11
Posts: 3894
Loc: missouri usa
I drive it everyday I just did a piston soak so maybe its all the [censored] coming out. I wouldnt think it would still be doing it
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#2426952 - 11/06/11 04:45 PM Re: black soot out of exhaust [Re: Dakota1820]
45ACP Offline


Registered: 04/03/11
Posts: 1271
Loc: Dallas Texas
Originally Posted By: chevyboy14
I drive it everyday I just did a piston soak so maybe its all the [censored] coming out. I wouldnt think it would still be doing it


+1

Some cars shoot "black liquid" out of the exhaust that appears to defy all conventional explanations.

Its not Head Gasket smoke
it MAY be fuel smoke (but its not smoke)
It IS black and it is liquid
it drips out of the pipe
and it stains the ground as ink when it appears.
Then it goes away.


I too have not been completely been able to explain what that stuff is, nor how it gets through all that piping, past a cat and muffler, to the tailpipe. shrug

Might be carbon might be gas but its "black liquid." literally then it stops.

shrug

Havent seen it in awhile but i have heard people with old Chevy trucks say they ruined their pants walking behind their truck when it used to do that. So its apparently an (old) GM thing. And again idk what it is.

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#2426959 - 11/06/11 04:58 PM Re: black soot out of exhaust [Re: Dakota1820]
Dakota1820 Offline
formerly chevyboy14


Registered: 04/28/11
Posts: 3894
Loc: missouri usa
Maybe its soot that is in the exhaust itself. Residue I mean and the condensation in the muffler and what not mix with it ? Just a thought but idk.
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2004 Honda civic vp -m1 5w30
1998 Saturn sl2 -mobil super 5000 5w30


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#2426973 - 11/06/11 05:16 PM Re: black soot out of exhaust [Re: Dakota1820]
OVERKILL Offline


Registered: 04/28/08
Posts: 32041
Loc: Ontario, Canada
You ran AC Delco combustion chamber cleaner through it. It likely cleaned your combustion chambers and a number of other areas, you are now seeing what has been "cleaned".
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#2426983 - 11/06/11 05:20 PM Re: black soot out of exhaust [Re: Dakota1820]
Dakota1820 Offline
formerly chevyboy14


Registered: 04/28/11
Posts: 3894
Loc: missouri usa
The deep creep stuff I just used seemed like it was comparable to ac delco stuff. Pretty good for the price
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2004 Honda civic vp -m1 5w30
1998 Saturn sl2 -mobil super 5000 5w30


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#2426996 - 11/06/11 05:29 PM Re: black soot out of exhaust [Re: Dakota1820]
artificialist Offline


Registered: 09/23/07
Posts: 8124
Loc: Florida
Many Saturns have bad coolant temp sensors, causing an excessively rich mixture. The solution is to replace the sensor, and then run even more cleaner through the engine.
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#2426997 - 11/06/11 05:30 PM Re: black soot out of exhaust [Re: Dakota1820]
OVERKILL Offline


Registered: 04/28/08
Posts: 32041
Loc: Ontario, Canada
Originally Posted By: chevyboy14
The deep creep stuff I just used seemed like it was comparable to ac delco stuff. Pretty good for the price


So you've run a host of cleaners through it now, I imagine they've done some cleaning wink
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