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Home >> Ford >> 2007 >> Freestar SEL >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Symptom Charts (Except Diesel & Hybrid) >> Step 3: No Diagnostic Trouble Codes (DTCs) Present Symptom Charts >> Chart 18

Chart 18

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 (Pinpoint Test unless noted)
  1. Base Engine
  1. REFER to the appropriate ENGINE article.
  1. Fuel Delivery System
    • Black smoke
  1. refer to PINPOINT TEST HC - Fuel Delivery System .
  1. Ignition System
    • Black smoke
  1. For vehicles equipped with a coil pack ignition system, refer to PINPOINT TEST JC - Secondary Ignition (Coil Pack) .
  2. For all others, refer to PINPOINT TEST JB - Secondary Ignition (COP) .
  1. PCV System
    • Blue smoke
  1. REFER to the appropriate ENGINE SYSTEM - GENERAL INFORMATION article for a description of the Oil Consumption Test.