Manifold vacuum
= Manifold vacuum
{wiki=Manifold_vacuum}
Manifold vacuum refers to the vacuum created in the intake manifold of an internal combustion engine when it is running. The intake manifold is the component that distributes the air and fuel mixture to the engine's cylinders. Here's a breakdown of the concept: 1. **Creation of Vacuum**: When the engine operates, the pistons move downward during the intake stroke, creating a negative pressure (vacuum) in the intake manifold.