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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 396 (DRIVEABILITY - Diesel - Non-DTC Based Diagnostics - 2500 Hd & 3500 Hd) >> Diagnosis And Testing >> Excessive Black Smoke Out Exhaust >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
FAULTY AFTERTREATMENT SYSTEM
OUTDATED ECM/PCM CALIBRATION
POOR FUEL QUALITY/CONTAMINATION
AIR FILTER RESTRICTION
LEAK IN THE INTAKE AIR SYSTEM
EXHAUST SYSTEM LEAKS/RESTRICTIONS
FAULTY FUEL INJECTOR
FUEL SYSTEM ISSUES