To find it, you'll need to:
1. Consult your owner's manual: This is the best place to start. The manual should have a diagram showing the location of all relays and fuses.
2. Check the under-hood fuse box: Many Ford vans have the fuel pump relay in the main fuse box under the hood. Look for a diagram on the inside cover of the box. The relay itself might be labeled, or you might need to cross-reference the diagram with your owner's manual.
3. Check the interior fuse panel (if applicable): Some models have a secondary fuse panel inside the cab, often located under the dashboard. Check this panel as well.
4. Look for a relay with a symbol that looks like a fuel pump or a gas pump: The relay itself might have a symbol to identify its function.
5. Use a wiring diagram: If you can't locate it visually, you can use a wiring diagram specific to your 1989 Ford van model to trace the fuel pump circuit and identify the relay location. You can often find these online through forums or repair manuals.
Important Note: Before working with electrical components, always disconnect the negative battery terminal to prevent accidental short circuits.
