My car wont start

Make sure the fuel pump buzzes when turning key to on, but not trying to start vehicle. If it does your fuel pump should be ok. Now check for spark at a plug wire.

Check your O2 sensors. That is a common problem with the 350's

it could be a few things, check your pcm fuses and relays, could be the VATS system going out, starter could be going out, or a bad ground on the battery. just to name a few of course. i would test the starter first though. is your security light on in the dash? if so its the vats system. which is easy to fix. just google it, cause i dont want to be at fault.

Check ignition switch and neutral safety switch.

When you turn the ignition to on you should here the fuel pump run. If you aren't hearing it then it sure sounds like the pump. Assuming nothing has happened to the car to affect electrical connections. I don't think there is a fuse for the pump but worth checking also.

Have you replaced the ignition switch? Passkey wire broken can cause no start problem.

yes check the fuel pump PSI, then check the ESC(electronic spark control), or the crank position sensor good luck

did you check for spark? are you getting a rpm signal from your crank and/or cam sensor?is it a six or eight cyl?

First, clean your battery cables with a wire brush so you know you have a good connection from your battery. If that doesn't do it, it's most likely your starter or selenoid.

test the alternator thi keeps the truck running