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Where is the fuel relay switch located on a 1996 Mercury Sable with 3.0L engine?

The fuel pump relay location on a 1996 Mercury Sable with a 3.0L engine is in the Power Distribution Box (PDB), often called the fuse box under the hood. It's *not* usually a separate, easily identifiable relay switch like some older vehicles.

The exact location within the PDB varies slightly depending on the specific trim level of the Sable. You'll need to consult your owner's manual or a wiring diagram for the precise location and the relay's appearance (it might be labeled, or you might have to trace wires to identify it).

To find it:

1. Open the hood.

2. Locate the Power Distribution Box (PDB). It's typically a large black plastic box under the hood, often near the battery.

3. Consult your owner's manual or a wiring diagram. This is crucial. The manual will show you the fuse box layout, and may identify the fuel pump relay specifically. A wiring diagram will be even more precise. Online resources like auto parts store websites (e.g., AutoZone, Advance Auto Parts) often have downloadable diagrams. Search for your vehicle's year, make, model, and engine.

4. Look for a relay that might be labeled "FUEL PUMP" or a similar designation. If not labeled, you'll need to use the wiring diagram to trace wires connected to the fuel pump to find the correct relay. They are often square or rectangular and have multiple pins or terminals.

Important Note: Always disconnect the negative (-) battery cable before working on electrical components to avoid shocks and accidental shorts.