The fuel pump relay location on a 2007 Ford Taurus is in the
Power Distribution Box (PDB), also sometimes called the fuse box under the hood. It's not always clearly labeled as "fuel pump relay". You'll likely need to consult your owner's manual or a wiring diagram to pinpoint the exact relay. The manual will show a diagram of the PDB and identify which relay controls the fuel pump. The relay may be identified by a number or a symbol.
Without the owner's manual or a wiring diagram, you won't be able to definitively locate it. Trying to guess could lead to accidental damage or misidentification.
