Where is the vacuum pipe that connects to the inlet manifold?

The vacuum pipe that connects to the inlet manifold is typically located on the intake manifold of an engine, usually near the throttle body or the intake manifold runners. It is often a small rubber or plastic hose that draws vacuum from the manifold for various systems, such as the brake booster or emissions control components. Its specific position can vary depending on the vehicle make and model. Always consult the vehicle's service manual for precise location details.