Engine shut off and will not start

Hello. Having had bad experiences with aftermarket fuel pumps, I will say that the first thing to do would be to borrow a fuel pressure tester from the parts store and check the pressure. You'll hook that pressure gauge up to the schrader valve on the fuel rail. Turn the key on and see what pressure you get. Alldata days that you should get from 35-45 PSI with the engine running. So, you should get more than 45 PSI with the key on, engine off. If not, replace the pump again.

Here's how to do the test, generally: https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Also, I'm attaching screenshots of Alldatas limited information on checking the fuel pressure for this truck.

Start there and let us know what happens.

I can hear fuel pump kick on when I turn key.

Hello again. Sorry I just saw where you replied. I would still check the pressure output of the pump. Just because it runs doesn't mean it's strong enough.

If the pressure turns out to be enough, then we should move to checking for sparks. Basically, you're going to observe an in line spark tester on each cylinder while someone else cranks the engine. The tester should flash fairly brightly each time a spark comes through. Try it on a car that runs to see how bright sparks should be.

I use a tester similar to this one: https://www.google.com/url?q=https://www.amazon.com/Lisle-20610-Inline-Spark-Tester/dp/B0002STSC6&sa=U&ved=2ahUKEwigvZuV4JHwAhWSK80KHcI3ABQQFjAAegQICBAB&usg=AOvVaw2WSoBk23FZufCezXRVNNWI

You can buy them at the local parts shops or online if you want to save a little cash.

Either way, let us know what you find and we'll go from there.