Intake Manifold Upper Section; Air Cleaner; Engine Cooling Fan - Volvo B5254T3 Manual

Intake Manifold Upper Section

•
The upper intake manifold is plastic.
•
Each cylinder has an intake pipe that comes off a plenum chamber.
•
The bend in the intake manifold after the throttle body acts as a mixing chamber and evenly
distributes air to the cylinders.
The MAP sensor is located in the intake manifold.
•

Air Cleaner

The air cleaner and air cleaner housing are designed to minimize drops in pressure and to be as
•
compact as possible.
The air cleaner housing has a volume of 9.1 liters.
•
•
The air cleaner housing and control module box are integrated into one unit.
The air cleaner is a cassette that is inserted vertically. The cover above the filter is mounted using two
bolts.
The air cleaner unit is mounted on 3 brackets.
•
•
A fine net is located behind the ECM to reduce the cyclone effect in the air flow.
•
A spring-loaded valve is located beside the air cleaner and opens when the pressure drops below 6
kPa if the air intake pipe is restricted.

Engine Cooling Fan

6 fixed speeds
7 blades