Where is the PCV valve located on a Toyota sienna 1998?

On a 1998 Toyota Sienna, the PCV (Positive Crankcase Ventilation) valve is located on the engine's valve cover. Specifically, it is usually found on the driver's side, near the back of the engine. To access it, you may need to remove some components or hoses that might be in the way. Always refer to the vehicle's service manual for precise instructions and diagrams.