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< Engine Emission Control
Transit 2006.5 (04.2006-)
Mechanical Repairs
3 Powertrain / 303 Engine
303-08 Engine Emission Control / Description and Operation
Diagnosis and Testing
Engine Emission Control - 2.3L Duratec-HE (MI4)
Engine Emission Control - Engine Emission Control—2.3L Duratec-HE (MI4)
Transit 2006.5 (04/2006-)
Diagnosis and Testing
Inspection and Verification
Verify the customer concern.
Visually inspect for obvious signs of mechanical damage.
Visual Inspection Chart
Mechanical
Hose(s)/hose joints
Gasket(s)
Positive crankcase ventilation (PCV) valve
PCV separator
If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
If the cause is not visually evident, verify the symptom and refer to the Symptom Chart.
Symptom Chart
Symptom
Possible Sources
Action
Excessive crankcase pressure
*
Blocked or damaged PCV hose(s).
*
Blocked crankcase vent oil separator.
*
CHECK the PCV system components for blockages, CLEAN or INSTALL new components as necessary.
*
Worn or damaged engine components.
*
REFER to: Engine (303-01D Engine - 3.2L Duratorq-TDCi (Puma) Diesel, Diagnosis and Testing).
Mechanical Repairs
3 Powertrain / 303 Engine
303-08 Engine Emission Control / Description and Operation
Diagnosis and Testing
Engine Emission Control - 2.3L Duratec-HE (MI4)
Diagnosis and Testing|Removal and Installation >
< Engine Emission Control