Where is the vacuum pump breather pipes located on a Toyota previa?

On a Toyota Previa, the vacuum pump breather pipes are typically located near the vacuum pump itself, which is usually mounted on the engine block. You can find the vacuum pump on the driver's side of the engine, toward the back. The breather pipes will be connected to the vacuum pump and may run towards the intake manifold or air cleaner. For precise location and routing, consulting a repair manual specific to your vehicle model is advisable.