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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Engine Controls - Symptom Charts (Diesel)) >> No Diagnostic Trouble Codes (DTCS) Present Symptom Charts >> Chart 8

Chart 8

WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
SYSTEM OR COMPONENT REFERENCE (Section 5 Pinpoint Test unless noted)
Fuel Quality REFER to DIAGNOSTIC PROCEDURES , Sufficient Clean Fuel.
Black Exhaust Smoke CHECK for charge air cooler (CAC) restrictions.
White Exhaust Smoke Some white exhaust smoke is a normal condition at start up with temperatures below 10°C (50°F) or with an extended idle in a cool climate. GO to PINPOINT TEST AF .
Charge Air Cooler (CAC) For Restrictions CHECK for any conditions that may restrict airflow through the CAC. DISCONNECT the tubes at the CAC and CHECK for restrictions. CHECK inside of the CAC for restrictions. If there are any restrictions, REPAIR as necessary.
Engine Coolant Leak REFER to the appropriate Engine Cooling article, Component Tests, Engine Cooling System Pressure Test.
Thermostat Operation REFER to the appropriate Engine Cooling article, Component Tests, Thermostat.
Engine Compression REFER to the appropriate Engine - 6.7L Diesel article, General Procedures, Compression Test.
Exhaust Gas Recirculation (EGR) System GO to PINPOINT TEST W .
Mass Airflow (MAF) Sensor GO to PINPOINT TEST J .
Cylinder Compression REFER to the appropriate Engine article, General Procedures, Compression Test. CARRY OUT the Compression Test.