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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Controls - Symptom Charts - (Hybrid)) >> No Diagnostic Trouble Codes (DTCs) Present Symptom Charts >> Chart 13

Chart 13

WARNING: This page is about a different variant/trim than selected.

- 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
Base Engine REFER to ENGINE .
Fuel Delivery System
  • Black Smoke
 GO to PINPOINT TEST HC .
Ignition System
  • Black Smoke
 GO to PINPOINT TEST JB .
PCV System
  • Blue Smoke
 GO to PINPOINT TEST HG .
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