My 2000 ford explorer turns over but wont start

yes the fuel pump is running, you know because when you put the key up and ready to start you can hear it. I know just what you are talking about I have had that same problem. It is about a $4,00 part should not be more then $10.00. So open the hood and then go to the fuse box you will want to change the fuel pump relay that is in the middle of power point and pcm power relay. Also there is another that has to do with the fuel and that is called fuel system this part is located on the right side of the fuse box and the other is on the left.
I hope that you have every thing work out for you please let me know what happens I hope it works out well.
Nikki2913

if the fuel pump is running it isn't the relay as someone is stating does the check engine light go off whiie cranking if not then it does have spark you can e-mail me at tsdaigle69@comcast,net for more.