Where is vacuum hose located on a 2002 Yukon?

On a 2002 GMC Yukon, the vacuum hose is typically located near the engine, often connected to the intake manifold or vacuum reservoir. You can usually find it running along the engine bay, often near the brake booster or the throttle body. It's important to check for any loose or damaged hoses, as they can affect engine performance. If you're troubleshooting, inspecting the driver's side of the engine compartment is a good starting point.