Chart 18

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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.

SYSTEM/COMPONENT	REFERENCE (Section 5 Pinpoint Test unless noted)
Base Engine	REFER to the Workshop Manual Section 303-00, Engine System and carry out the Inspection and Verification to continue diagnosis.
Fuel Delivery System Black smoke	refer to PINPOINT TEST HC - Fuel Delivery System .
Ignition System Black smoke	For vehicles equipped with a coil pack ignition system, refer to PINPOINT TEST JC - Secondary Ignition (Coil Pack) . For all others, refer to PINPOINT TEST JB - Secondary Ignition (COP) .
PCV System Blue smoke	REFER to the Workshop Manual Section 303-00, Engine System for a description of the Oil Consumption Test.