How do you change the intake on a sienna 04?

To change the intake manifold on a 2004 Toyota Sienna, first ensure the engine is cool and disconnect the negative battery cable. Remove any components obstructing access, such as the air intake and throttle body. Unbolt the intake manifold from the engine, carefully disconnecting any vacuum lines and electrical connectors. Replace the old manifold with a new one, ensuring proper gasket placement, then reassemble in reverse order.