You can try to listen closer around the fuel tank for any noise for 2-3 seconds after turning the ignition on. If you cant hear this, there might be a problem with the fuel pump relay.
![98 ford expedition fuel pump location 98 ford expedition fuel pump location](https://i.ytimg.com/vi/KWYtmmXfLZw/maxresdefault.jpg)
This means that the fuel pump started building fuel pressure in the fuel rail. When you turn the ignition on in the ignition lock, you should hear a whirring noise from the rear of the car. No fuel pressure means that your engine will never start, and if the fuel pump relay failed, it would not give any power to the fuel pump to build up fuel pressure. Engine is completely deadĪ faulty fuel pump relay can also cause the engine not to start at all and be completely dead. The part that ensures none of this happens is the fuel pump, and it cannot work perfectly if the fuel pump relay develops any issues. The engine turns off if the combustion chamber’s fuel is inadequate or doesn’t have the proper pressure. If the fuel pump relay may have any bad solderings inside it, it might suddenly lose the relay connection and stop delivering power to the fuel pump.
![98 ford expedition fuel pump location 98 ford expedition fuel pump location](http://i698.photobucket.com/albums/vv345/qcksnake/lightning%20pics/exp1.jpg)
However, this can happen due to several other reasons, such as a choked fuel filter, so you should always properly diagnose your car before replacing any parts. Therefore, any fuel pump relay issues will affect fuel flow to the combustion chamber, and your vehicle might have problems starting. An engine runs on fuel just like the heart of a human runs on oxygen and blood. The fuel pump relay going bad can affect the fuel pump’s power and affect fuel delivery to the engine.
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If the fuel pump relay suddenly fails, it will light up the check engine light and store a trouble code on the fuel pressure. The ECU monitors the fuel pressure with the help of the fuel pressure sensor. A check engine light is also the most common sign of all bad fuel pump symptoms. If the ECU suspects a wrong value from any sensor, it will light up the check engine light. The engine control module does always monitors all engine sensors to ensure they do not show the wrong values. Here is a more detailed list of the most common symptoms of a bad fuel pump relay. The relay can fail due to many reasons, from dust to electrical power surges, anything can affect the well-being of a fuel pump relay.
![98 ford expedition fuel pump location 98 ford expedition fuel pump location](https://www.buyautoparts.com/data/all_images/525-6280-map2.jpg)
You can also notice signs like rough acceleration. You will probably see these signs along with a check engine light on your dashboard. The most common symptom of a bad fuel pump relay is a stalling or dead engine. Can you clean or fix a fuel pump relay? 5 Bad Fuel Pump Relay Symptoms