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What does it mean when black deposits is coming out of my exhaust pipes

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Old 09-25-2004, 01:43 AM
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What does it mean when black deposits is coming out of my exhaust pipes

As the subject says.....what does it mean when black carbon deposits is coming out of my exhaust pipes at start up??Is it my heads?valves?both?Will it effect my smog check when i go in later this month?All and any info will be greatly appreciated
Old 09-25-2004, 07:09 AM
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ede
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you mean like chunks of black stuff?
Old 09-25-2004, 11:20 AM
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if it looks like smoke then its running rich.
Old 09-25-2004, 11:49 AM
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Its little specs of black deposits...its not really black smoke but little specs of black somethings lol
Old 09-26-2004, 09:43 PM
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I think what you are seeing is water condensation mixing with the carbon deposits in the exhaust. In my opinion this is normal and goes away as the exhaust system heats up. For your smog check you want your car at it's normal running temperature. So make sure it is warmed up. Allen
Old 09-27-2004, 01:56 AM
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Last edited by Cameron; 09-28-2004 at 07:16 PM.
Old 09-30-2004, 03:08 AM
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carbon build up in the heads
Old 09-30-2004, 03:23 AM
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Originally posted by rp_guy
carbon build up in the heads
i have to agree with you...what is the fix for this??new heads?and i think this is why its throwing codes 32,42 and 45...it says im running rich...and then im not getting enough spark
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