Where is the vacuum hose on a 2003 Jeep Wrangler Rubicon?

On a 2003 Jeep Wrangler Rubicon, the vacuum hose is typically located near the engine, connected to the intake manifold. It may also lead to the vacuum actuator for the front axle, especially if your vehicle has a part-time four-wheel-drive system. To locate it, look for a small rubber hose that may be attached to the throttle body or intake area. Inspect the engine bay carefully, as the hose can be routed in different ways depending on modifications or repairs.