Where is the fuel pump relay on a 1991 Buick LeSabre?

The fuel pump relay location on a 1991 Buick LeSabre isn't standardized across all trim levels and options. It's usually found either in the underhood fuse box (Power Distribution Center or PDC) or sometimes in a separate relay center, often near the battery.

To find it, you'll need to:

1. Consult your owner's manual: This is the best place to start. The manual will have a diagram showing the location of all fuses and relays.

2. Check the underhood fuse box: This is the most common location. Look for a diagram on the inside of the fuse box cover that identifies the relays. The relay itself may be labeled "Fuel Pump" or have a symbol related to fuel.

3. Look near the battery: If it's not in the underhood fuse box, it might be in a separate relay center located nearby.

4. Use a wiring diagram: A wiring diagram specific to your 1991 Buick LeSabre (available online through repair manuals or auto parts websites) will show the exact location and circuit for the fuel pump relay.

Important Note: Before working on electrical components, always disconnect the negative terminal of your battery to prevent accidental shorts.