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Mercury Truck
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2004
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Monterey V6-4.2L VIN 2
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Repair and Diagnosis
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Powertrain Management
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Emission Control Systems
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Positive Crankcase Ventilation
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Service Precautions
Positive Crankcase Ventilation: Service Precautions
CAUTION: Do not remove the PCV system from the engine. Removal of the PCV system will adversely affect the fuel economy and engine ventilation and result in shorter engine life.