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Where is the fuel pump fuse on Chevy 1991 s10 pick up truck?

The location of the fuel pump fuse in a 1991 Chevy S10 pickup truck isn't standardized; it varies slightly depending on the specific trim level and options. It's not always a dedicated fuse for the fuel pump itself.

Instead, you'll likely find the circuit protected by either:

* The Fuel Pump Relay: This is more common. The relay itself isn't fused, but the circuit that *powers* the relay often *is* fused. You'll need to check your owner's manual or a wiring diagram to find which fuse protects the fuel pump relay circuit.

* A General Power Distribution Fuse: This is less likely, but possible. The fuel pump circuit might be part of a larger circuit protected by a higher amperage fuse in the underhood fuse box (usually in the engine compartment). Again, your owner's manual or a wiring diagram will be crucial.

To find the correct fuse:

1. Consult your owner's manual: This is the best place to start. The fuse box diagram should clearly indicate which fuse(s) are related to the fuel pump or fuel pump relay.

2. Locate the underhood fuse box: This is usually located near the battery in the engine compartment.

3. Examine the fuse box diagram: The diagram shows the amperage rating and what each fuse controls.

4. Check the fuses visually: Look for any blown fuses (broken filaments).

5. If using a multimeter to test for continuity: This is a more advanced method but helpful if you can't visually identify the issue. You'd need a wiring diagram to trace the circuit back from the fuel pump relay to the fuse.

Important Note: If you're not comfortable working with automotive electrical systems, it's best to take your truck to a qualified mechanic. Improperly handling fuses or electrical components can be dangerous.