Engine won't start

Hi, The truck started fine, I backed up then I put it in drive and it stalled. Now it won't start. It turns over (new battery), but doesn't fire up. Any clues?

Could be a couple things...first we have to determine what is missing...fuel or spark.
Pull a plug wire off and spin the engine over..do you hear and see spark jumping out of the boot?
Next, press the shrader valve on the fuel line that goes into the injector...does fuel spray out?
Determining what is missing will lead you to the root cause of your problem.......if I had to guess, with no information, I would say most likely senerio is the fuel pump...but before I would jump in and replace it, I would do some diagnosing first.