* Under the hood, in the Power Distribution Box (PDB): This is the most common location. The PDB is usually located near the battery, often on the driver's side fender well. Look for a box with lots of fuses and relays. The relay itself might be labeled, but you'll likely need to consult your owner's manual or a wiring diagram to pinpoint the correct one.
* Inside the passenger compartment fuse box: Less common, but possible. This fuse box is usually located under the dashboard, often near the driver's side. Again, a wiring diagram or owner's manual will be essential.
Strongly recommended: Consult your 2001 Ford Explorer's owner's manual. It will have a diagram showing the location of all fuses and relays, including the fuel pump relay. Trying to locate it without a diagram can lead to wasted time and potential for accidentally damaging other components. A reliable online repair manual for your specific year and model might also be helpful.
