I drove my truck two blocks yesterday and turned it off. Now it is not starting but cranks properly. I checked the inertia switch and made sure it is in the reset position. I sprayed a little starting fluid in the intake and it started. It ran for a few seconds.
Where is the fuel pump relay and/or fuse so I can check those before I drop the tank or take the bed off to replace the fuel pump?

I can't find an online manual to answer some of these questions. Is there still one on the web somewhere?

 

Slow done a bit.
You need to check for loss of fuel pressure before you go into a pump change and all that work on a suspicion.
Get a pressure gauge attached to the passenger side fuel rail Schrader port.
Do several key on cycles and watch the gauge.
The pump normally runs about 2 seconds each time the ignition is turned on.
It should come up to about 35 psi +/-.
If it does not come even close then you likely need a pump.
Even with reduced pressure the motor should at least run at idle with reduced pressure.
Each time you cycle the key to run only, the pump should run about 2 seconds then shut off.
At cranking the PCM turns it back on full time.
Good luck.