PCV System

The PCV system:

• uses intake manifold vacuum to ventilate blow-by fumes from the crankcase.
• returns the fumes to the intake manifold for combustion.

The PCV system consists of the:

• PCV heater element (early build engines only).
• crankcase ventilation tube.
• PCV valve.

The PCV valve:

• varies the amount of blow-by gases returned to the intake manifold based on available engine vacuum.
• prevents combustion gases backfiring into the crankcase.
• utilizes an internal heater (early build engines only).

The PCV heater element:

• heats the ventilating air and blow-by gases going to the intake manifold.
• is retained by 2 self-tapping screws and mounted in the intake manifold.
• has an optional set of mounting holes located in the intake manifold.