Problems preventing fuel delivery in a 2009 Tahoe could stem from various components such as:
* Fuel Pump Relay: This is an electrically controlled component that activates the fuel pump. A faulty relay can prevent fuel from reaching the engine.
* Fuel Pump Inertia Switch: This switch is a safety device designed to cut off fuel flow in the event of a collision. It's usually found under the dashboard or in the engine compartment, often near the fuel pump relay.
* Various Sensors: Numerous sensors (like the crankshaft position sensor, camshaft position sensor, etc.) monitor engine operation. A malfunctioning sensor can prevent the computer from allowing fuel to be delivered.
* Fuel Pump itself: A failing fuel pump is a common cause.
* Wiring and Connectors: Problems in the electrical system, such as corroded connections or damaged wiring, can interrupt the fuel delivery system.
To troubleshoot fuel delivery issues, you should consult a repair manual specific to your 2009 Tahoe or take it to a qualified mechanic. They have the diagnostic tools to pinpoint the exact cause of the problem. Trying to locate a "fuel safety switch" without proper knowledge could lead to further damage or injury.