* Fuel pump relay: This is a common culprit. It's a small electrical switch that activates the fuel pump. You'll need to locate the relay (usually in the under-hood fuse box or a separate relay center) and check it for proper operation. You might need to swap it with a known good relay from another circuit to test it.
* Fuel pump fuse: Check your fuse box for a blown fuse related to the fuel pump.
* Inertia switch: Some vehicles have an inertia switch, a safety device that cuts power to the fuel pump in a collision. This switch usually resets by pushing it back in (check your owner's manual for its location; it may be under the dash or in the engine bay).
* Fuel pump itself: The pump might have failed. This requires professional diagnosis and replacement.
* Wiring: A wiring problem between the fuel pump, relay, and computer could be the issue. This needs specialized testing equipment.
* Computer issues: In rare cases, the engine computer itself might be faulty and preventing the fuel pump from operating.
Before you start replacing parts, have the car's electrical system checked by a qualified mechanic. They have tools to diagnose the problem accurately and avoid unnecessary parts replacement. Trying to troubleshoot a fuel pump problem without the proper diagnostic tools can be frustrating and potentially unsafe.
