Where is the emergency fuel cut off switch in a 1983 Chevy s-10?

There isn't a readily accessible, centralized "emergency fuel cut-off switch" in a 1983 Chevy S-10 like you might find in some modern vehicles. The primary way to stop fuel flow in an emergency would be to disconnect the fuel pump's electrical connection or, in a more drastic situation, disconnect the fuel line itself. Neither of these are conveniently located "switches."

To stop fuel flow, you'd need to:

* Locate the fuel pump relay: This is the easiest method. The relay cuts power to the fuel pump. The location varies slightly by model and engine, but it's typically under the hood in the fuse box or a nearby area. Consulting a wiring diagram for your specific S-10's engine and trim is crucial.

* Locate the fuel pump wire: As a last resort, you could find the wire going to the fuel pump and disconnect it. This requires more mechanical knowledge and potentially getting under the vehicle. Again, a wiring diagram would be essential.

* Disconnect the fuel line: This is the most drastic measure and should only be done if absolutely necessary. It involves working with fuel, which is dangerous. It requires specialized tools, and extreme caution should be exercised to avoid injury and further damage.

It's strongly recommended you consult a repair manual for your specific 1983 Chevy S-10 to locate the fuel pump relay and wiring. Improperly disconnecting fuel lines or electrical components can cause damage and is potentially hazardous.