The fuel pump relay is an electrical component that powers the fuel pump. By removing the relay, you're cutting power to the pump, causing it to stop and the pressure in the fuel lines to bleed off.
Finding the Fuel Pump Relay:
Unfortunately, Haynes manuals aren't always specific about relay locations. You'll need to locate the underhood fuse and relay box. This is usually found in the engine compartment, often near the battery or on the inner fender. The box will have a diagram on the inside cover showing the location of each relay and fuse. The diagram should be labeled clearly. Look for a relay that's labeled "Fuel Pump" or something similar (like "EFI," "Injection," or even a more cryptic code). It might also be in a secondary fuse box inside the car.
Tips for Finding the Relay:
* Consult your owner's manual: This should have a fuse and relay box diagram.
* Online forums: Search online forums for "1989 Ford Probe fuel pump relay location." Other Probe owners may have posted pictures or detailed instructions.
* Visual inspection: Look for relays that have multiple large gauge wires connected. Fuel pump relays often have thicker wires than others.
Important Safety Note: Once you remove the relay, you need to run the engine until it stalls. This is crucial to ensure the pressure is fully relieved. Do *not* crank the engine over repeatedly without the relay connected; this can damage the fuel pump.
If you are uncomfortable working on your car's fuel system, it's best to take it to a qualified mechanic. Working with fuel systems involves potential fire hazards.
