The vacuum hose routing diagram for a 1987 Nissan pickup with a 2.4L engine typically includes connections for the intake manifold, brake booster, and various emissions control components, like the EGR valve and canister. The hoses generally run from the intake manifold to the brake booster, with additional hoses branching off to the EGR and other vacuum-operated devices. For the exact routing, it's best to consult the vehicle's service manual or a specific diagram, as variations can exist depending on the particular model and emissions requirements.
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