Hard starting, rough idle, smell gas fumes and black smoke inside the tailpipes....
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2004 Chrysler 300M Question: What causes black smoke to come from exhaust.
Answer #1Bret Bodas from RepairPal Test Shop, August 14, 2010, 12:16Master
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.
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