Ford Mustang not starting due to fuel delivery issue on Ford Mustang

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

Problem overview

Some Ford Mustang owners report experiencing starting issues due to fuel delivery problems, often linked to low fuel pressure caused by a faulty fuel pump or clogged fuel filter, which prevents adequate fuel from reaching the combustion chamber. Additionally, some owners find that insufficient fuel levels can contribute to the no-start condition, prompting them to ensure the tank is adequately filled. Using a fuel pressure gauge is recommended to verify that fuel pressure levels are appropriate for starting. Older Mustang models may experience complications with the fuel pump control system, leading to further starting difficulties. Monitoring fuel pump performance with an OBD2 scanner can also reveal inconsistencies that affect starting. Furthermore, some owners discover that a weak or dead battery can cause slow cranking or a complete failure to start, necessitating a battery health check. If the engine cranks but fails to start, the ignition system, including components like ignition coils and spark plugs, may be at fault. Addressing these factors is crucial for effectively diagnosing and resolving starting issues in a Ford Mustang.

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