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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 89 (Engine Emission Control System) >> Description And Operation >> Engine Emission Control - 6.2L (2V), 6.8L (3V) >> System Components

System Components

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The PCV valve varies the amount of blow-by gases returned to the intake manifold based on available engine vacuum.

The PCV tube carries the blow-by gases from the crankcase to the PCV fitting.

The PCV fitting connects the PCV tube to the intake manifold and is heated on the 6.8L (3V).

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