Problems that *might* feel like a "fuel switch" issue could include:
* Fuel pump relay: This is a common culprit. A failing relay can prevent the fuel pump from working. You'd need to locate the relay (usually in the underhood fuse box) and either replace it or try swapping it with another relay of the same amperage to see if that fixes the problem.
* Fuel pump fuse: Check your fuse box for a blown fuse related to the fuel pump.
* Inertia switch: Some vehicles have an inertia switch that cuts power to the fuel pump in a collision to prevent fire. This is usually located under the dashboard, often near the driver's side. Pressing the button might reset it, but this is unlikely to be the cause of a sudden fuel stoppage unless you recently had a collision.
* Fuel pump itself: The fuel pump itself could be failing. This requires a more involved repair, usually needing to drop the fuel tank.
* Wiring issues: A break or short in the wiring harness leading to the fuel pump can also prevent the pump from working. This is a difficult problem to diagnose and repair without specialized tools and knowledge.
* Computer issue (PCM): In rare cases, a problem with the Powertrain Control Module (PCM) can cause the fuel system to shut down. This is a serious problem requiring professional diagnosis.
Instead of looking for a "fuel switch," you should troubleshoot these components:
1. Check the fuses: Locate the fuel pump fuse in your owner's manual or fuse box diagram and check for a blown fuse.
2. Check the fuel pump relay: Locate the fuel pump relay and either replace it or try swapping it with another similar relay (if possible).
3. Check the inertia switch (if equipped): Press the button on the inertia switch to see if it resets. Your owner's manual should tell you if your vehicle has one and where it's located.
4. Listen for the fuel pump: Turn the ignition key to the "on" position (don't start the engine). You should hear a brief humming sound from the fuel pump in the back of the vehicle. If you don't hear it, the pump or its electrical supply is likely the problem.
If you're not comfortable working with car electrical systems, take your Dodge to a qualified mechanic. They have the diagnostic tools and expertise to properly identify and fix the problem. Attempting repairs yourself without the proper knowledge could be dangerous.
