However, common locations for relays in Ford vehicles of that era include:
* Under the hood in the relay center: This is the most likely place. The relay center is usually a plastic box near the battery or fuse box. Look for a labeled diagram on the inside of the cover.
* Inside the passenger compartment fuse box: Less common for the fuel pump relay, but possible.
To find it, you should:
1. Consult your owner's manual: This is the best place to start. It will have a diagram showing the fuse and relay box layouts.
2. Check the relay box under the hood: Carefully examine the relays in this box. Some relays might be labeled, or you might find a diagram on the inside of the cover. If you suspect it is the fuel pump relay and it looks different from the others, look up a picture of a fuel pump relay to compare.
3. Use a wiring diagram: A wiring diagram specific to your 1993 Ford Aerostar's year and engine will show the location and color codes of the wires related to the fuel pump relay, helping you identify the correct relay. You can find these diagrams online through auto parts websites or repair manuals.
Without knowing your specific Aerostar configuration, providing a precise location is impossible. Refer to your vehicle's documentation or a relevant wiring diagram for the most accurate information.