Chart 18

WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2010 Mercury Milan, 2010 Mercury Mariner, 2010 Mercury Grand Marquis, 2010 Lincoln Town Car, and 2010 Lincoln Navigator L. However, it is still accessible from the selected car via links, so may be relevant.

Exhaust System Concerns: Visible Smoke

NOTE: Black smoke indicates a rich fuel mixture, blue smoke indicates burning oil, and white smoke indicates water in the combustion chamber.

EXHAUST SYSTEM CONCERNS: VISIBLE SMOKE SYMPTOM CHART

SYSTEM/COMPONENT	REFERENCE (article 5 Pinpoint Test unless noted)
Base Engine	REFER to the appropriate Engine System article and carry out the Inspection and Verification to continue diagnosis.
Fuel Delivery System Black smoke	GO to PINPOINT TEST HC .
Ignition System Black smoke	For vehicles equipped with a coil pack ignition system, GO to PINPOINT TEST JC . For all others, GO to PINPOINT TEST JB .
Positive Crankcase Ventilation (PCV) System Blue smoke	REFER to the appropriate Engine System article for a description of the Oil Consumption Test.
Turbocharger System Blue smoke	REFER to the appropriate Fuel Charging and Controls - Turbocharger article for the Oil Consumption Test.