Where does Vacuum Modulator hose attach to manifold on 1988 ford e 350 econoline van?

On a 1988 Ford E-350 Econoline van, the vacuum modulator hose typically attaches to a vacuum port on the intake manifold. This port is usually located near the throttle body or carburetor. Ensure that the hose is securely connected to maintain proper vacuum pressure for the transmission's shifting functions. If you're unsure, consulting the vehicle's service manual can provide specific guidance for your model.