If you're experiencing fuel delivery problems with your Navigator, the issue is likely *not* a fuel pump that needs resetting, but rather one of these:
* Low fuel: The most obvious reason!
* Fuel pump failure: The pump itself might be failing, requiring replacement. This is a common problem and often manifests as the vehicle not starting, or sputtering.
* Clogged fuel filter: A blocked fuel filter restricts fuel flow.
* Bad fuel pump relay: The relay switches power to the fuel pump; a faulty relay prevents the pump from working.
* Faulty fuel pressure regulator: This regulates fuel pressure in the system; a malfunction can cause poor fuel delivery.
* Electrical problems: A wiring problem between the fuel pump, relay and the PCM (Powertrain Control Module) can prevent the pump from operating.
* Fuel pump inertia switch: Some vehicles have a manual safety switch (inertia switch) that cuts power to the fuel pump after a collision. This might be tripped and need to be reset (usually a small, easily accessible button or switch, often under the dash or in the engine bay – consult your owner's manual).
What you should do instead of trying to "reset" the fuel pump:
1. Check the fuel gauge: Make sure you have fuel in the tank.
2. Check the fuel pump relay: Locate the relay (consult your owner's manual for its location), and swap it with a known good relay of the same amperage (if you have a spare). This is a simple way to test the relay.
3. Check the inertia switch (if equipped): Locate and reset it if it's tripped.
4. Have a professional diagnose the issue: If none of the above solves the problem, take your Navigator to a qualified mechanic for proper diagnosis and repair. They have tools and expertise to accurately pinpoint the source of the fuel delivery problem.
Attempting to "reset" a fuel pump when it's not the actual problem is a waste of time and could lead to further misdiagnosis. Focus on troubleshooting the system as outlined above.
