1. Check your fuel pressure. The fuel pressure should be between: 50-60 psi at idle, 55-65 psi at 2500 RPM. Your fuel pressure can be measured with a fuel pressure gauge. If the fuel pressure is too low, it could be a sign of a failing fuel pump.
2. Inspect the inside of the fuel tank This can be done by removing the fuel pump assembly from the tank. This includes checking for dirt and debris, which could block the fuel line and cause the fuel pump to fail.
3. Listen for any unusual noises coming from the fuel tank. If you hear a whining, grinding or buzzing coming from the fuel pump while the vehicle is running, this could be a sign of a failing fuel pump.
4. Check for any leaks around the fuel pump or in the fuel lines. If you see any leaks, this could be a sign of a failing fuel pump or fuel line.
5. Look at the fuel pump. Check the overall appearance of the fuel pump. If you notice any damage or corrosion, this may indicate that the fuel pump needs to be replaced.
6. Check the electrical connector. Make sure the electrical connector is properly connected and that there are no damaged wires.
7. Check the filter sock which is inside the fuel pump assembly, for any tears or blockages.
If you’ve checked all of the above and are still experiencing problems with your Explorer, you may need to have the fuel pump replaced. It is recommended that you take your vehicle to a qualified mechanic for further diagnosing.
