If you're experiencing fuel delivery problems, potential causes could include:
* Faulty fuel pump: This is the most common reason.
* Blown fuse: Check your owner's manual for the fuel pump fuse location.
* Relay problem: Similar to the fuse, a faulty relay can prevent the pump from activating.
* Low fuel: Sounds obvious, but sometimes overlooked.
* Clogged fuel filter: This restricts fuel flow.
* Problems with the fuel pump wiring: A short or broken wire can prevent the pump from getting power.
* Inertia switch (if equipped): Some Mustangs had an inertia switch that cuts power to the fuel pump in a collision. Check for this and reset it if necessary (usually a small button or switch under the dash).
Before replacing the fuel pump (which is a significant undertaking), diagnose the problem systematically by checking the fuses, relay, and fuel filter first. A mechanic can help if you are not comfortable doing this yourself.
