The intake manifold on your Toyota VVTi engine is represented by those plastic tubes that reunite at some point in a large tube right behind the radiator. Their function is to allow filtered air ...

It has a pivoting butterfly valve or throttle plate to control the airflow to the intake manifold and combustion ... We highly recommend cleaning the throttle body every 30,000 miles — more ...

As mentioned, it's not always apparent when your car has a problem like this, until you discover oil residue somewhere, like the intake manifold. While a small amount of oil in the intake manifold ...

Gasoline engines burn a mixture of fuel and air. In order to create horsepower, your engine must maintain a good quantity and velocity of air/fuel charge into the combustion chamber. Think of the ...