Location of fuel pump cutoff switch for 2000 suburban 5.3L?

There isn't a readily accessible, standard fuel pump cutoff switch on a 2000 Suburban 5.3L like you might find on some race cars or aftermarket installations. The fuel pump is controlled electronically by the PCM (Powertrain Control Module). Disabling the fuel pump requires either disconnecting the fuel pump relay or pulling a fuse that supplies power to the fuel pump relay.

To disable the fuel pump you would need to locate:

* The Fuel Pump Relay: This is usually located in one of the underhood fuse boxes. Consult your owner's manual for the exact location and diagram. The relay may be labeled, but it often requires checking the diagram.

* The Fuel Pump Fuse: Similar to the relay, find the appropriate fuse in either underhood fuse box or the interior fuse panel. Again, your owner's manual will be crucial here.

Important Considerations:

* Safety: Disconnecting the fuel pump should only be done in emergency situations or during maintenance. Improperly disconnecting or tampering with the electrical system can damage your vehicle.

* Owner's Manual: Your owner's manual is your best resource for locating the fuse box diagrams, relay locations, and other important information related to your vehicle's electrical system.

Simply put, there's no easily accessible switch. You'll need to use the fuse or relay.