Where is the location of fuel pump relay on 1991 Oldsmobile Delta 88 Royale?

The fuel pump relay location on a 1991 Oldsmobile Delta 88 Royale is in the underhood fuse/relay center. However, there's no single definitive answer without knowing the exact configuration of your specific vehicle. The fuse/relay center's location is generally near the battery, but its shape and layout can vary slightly depending on options and trim level.

To find it:

1. Open the hood.

2. Look for a large black plastic box. This usually contains the fuses and relays. It might be labeled "Fuse Block" or "Relay Center."

3. Locate the relay diagram or legend. This diagram, often printed on the inside of the fuse/relay center's cover, will show you the location of each relay. Look for the one labeled "Fuel Pump," "EFI," or something similar. The diagram will use symbols, numbers, or a combination.

If you can't find the diagram:

* Consult your owner's manual. It should have a fuse/relay diagram specific to your vehicle.

* Use an online repair manual. Sites like Chilton or Haynes offer repair manuals specific to your vehicle year, make, and model. These usually have detailed diagrams.

* Search online forums specific to 1991 Oldsmobile Delta 88 Royales. Owners might have shared pictures or details of their fuse/relay box layouts.

Important Note: Always disconnect the negative battery terminal before working with any electrical components in your vehicle to prevent short circuits.