Shuts off and will not restart, code 42

Okay, but let me say again, the truck does not stall out at all, it shuts off as fast as it would if I turned the key off.

At first then gauge jumped up to around ten the I sprung a leak so took all off and get everything sealed back up now zero on the gauge, but the truck runs still for about five minutes or so then shuts off. I can fire it right back up but still zero on the gauge. Fuel pump is the problem I am thinking.

Now if I take gauge off as the truck runs and bleed the line it will stall then shut off.

Something sure not right though, if I disconnect everything and let it free flow with the pump on it will sling some fuel. Now it does not look like it under a lot of pressure but it does come out.

If you look closer at the clear line the bleed off
line, I am holding the JR button down and see how fast the pressure Ian bleeding off it should really really really slow so either my
like is plugs some way or the fuel pump is putting out less then 10 PSI.

Nope! Bypassed the filter and has around twelve pounds steady, went inside showered and came out all along the truck was running so I’m going to change the filter Tomorrow.
And I think my problem will be fixed.

I will do it. Cannot think of anything else since it ran great for twenty minutes without a filter. Maybe a combination of the two as well.

Changed fuel filter started up ran for one to two minutes, plumbed around the filter and Poured fuel in throttle body two times to get it started and as I was checking again for fire which I still have it fired up and ran for about five minutes. My thought at this point is the fuel filter is putting just enough load on an older pump and it is to the point that it cannot keep up. Thoughts? As soon as I turn the key on am I supposed to get fuel at injectors in throttle body?

Not sure how it is the real mechanic world, but I had to start somewhat conservative, lol. Thanks Roy for your help. I will definitely be back in this website.

Now, so do I change the pump or the assembly?

Copy all, thanks.

Seen that on rock auto but none were AC/Delco so I ordered just the pump on eBay for $35.00.