Chart 18

NOTE: Black Smoke Indicates A Rich Fuel Mixture, Blue Smoke Indicates Burning Oil, And White Smoke Indicates Water In The Combustion Chamber.

Symptom Chart

System/Component	Reference ( Pinpoint Tests - Gasoline Models 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 .
PCV System Blue Smoke	Refer To The Appropriate Engine System Article For A Description Of The Oil Consumption Test.