Where can I find the fuel pump relay for a 2004 Ford F350?

In a 2004 Ford F-350, the fog light relay can be found in the main fuse panel under the hood, located on the right side of the engine close to the battery. This fuse box, known as the integrated power module (IPM), houses all the relays and main fuses for exterior components like lights and windshield wipers. If there are issues with the fog lights, it's recommended to first inspect the relay for any faults. By using a voltage tool, you can check if the relay is receiving power. If it is, then consider replacing the relay, which typically costs around $15 to $25, depending on whether you opt for an aftermarket or OEM part. OEM parts are genuine manufacturer products that are pricier and might be harder to locate, while aftermarket parts are made by third-party manufacturers, offering good quality at a more affordable price, though there may be slight differences in appearance and lack manufacturer backing.