Ford Taurus turns over but won't start due to fuel pump relay issue and fuel pressure loss while driving on Ford Taurus

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Ford Taurus owners report experiencing difficulties when their vehicle turns over but won't start, often attributed to fuel pump relay issues and fuel pressure loss. A faulty fuel pump relay can lead to intermittent power loss to the fuel pump, resulting in unpredictable operation, stalling, or rough running. Additionally, if the engine cranks without starting, it may indicate a weak or dead battery, a common reason for starting failures. Insufficient fuel supply due to a malfunctioning fuel pump or clogged fuel filter can also prevent the Taurus from starting, especially if it isn't receiving enough fuel. Symptoms of a bad fuel pump relay often include the vehicle failing to start entirely. Owners are advised to listen for the fuel pump buzz when turning the ignition to the "on" position, as the absence of this sound may signal a dead fuel pump and a lack of fuel reaching the engine. Prompt attention to these issues is essential for the proper functioning of the vehicle's fuel system.

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