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2004 Chrysler 300M Question: What causes black smoke to come from exhaust.



MICHAELP4514, 3.5L V6, Bay Shore, NY, August 14, 2010, 13:06

Hard starting, rough idle, smell gas fumes and black smoke inside the tailpipes....

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  • Answer #1

    August 14, 2010, 15:16

    The engine is running too rich (getting too much fuel). This is a sign of a pretty big issue that needs to be checked out by a shop that can diagnose this fuel injection control system.
    Here are some if you need one: http://repairpal.com/directory?address=11706&car_brand_names=Chrysler

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