Engine stalling?

No I haven't checked the pressure, and no the check engine light has never come on just confuses me why this only happens in the spring/summer

Yea I've had the truck to 3 different GM dealers with no results just seem to be "throwing parts" at it in attempt to hopefully by a small chance of luck fix it, but at this point whatever gets the job done. I appreciate your time if you get anymore ideas I'm willing to try it

Driving 65 mph, heard a popping sound and when I was giving it gas nothing was happening and I seen my rpms drop to 0 and my power steering stopped working and now I cant get it to start back up, I dont see any fluids leaking anywhere all my electrical is still working also. Could it be the alternator or is this an engine problem?

I parked the vehicle running fine and replaced the steering column to try and eliminate the noise I experienced when turning to the right. After replacing the column and installing my old ignition tumblers for my key, the engine turns over fine tries to run and the second you let of the key the engine dies. Checked fuel pressure 60 lbs. Good spark it seems, and the fuel pump runs and their is good fuel quantity. Checked all the fuses and relays they test good MAP sensor when unpluged has no effect on the situation. Could it be in the BCM.

No security light on and no codes, double checked the lineup of the tumblers it seems to be fine.

Im sorry thats what I meant the only way I could get the ing switch in or out is to be in only one position if I rotate the slot inside the column the switch will not go back in, it seem to only go in one way.

No the switch will not come out of the column.

Im sorry the key only comes out in the off position no other. Could this be a BCM issue not recognizing the Hall effect sensor in the new steering column?

Found out the problem the new column has a hall effect switch that the BCM looks at for security purposes and it was not recogonized so it went into the security mode with now display on the dash. I tore the column appart and replaced the new column switch with the old hall effect sensor and it started right up. The only other way to fix the problem was to go to someone that had a tech II programmer and reprogram the BCM, The truck would not run so I would have had a towing bill on top of the programming charge.

Thanks for the support.

I have a 99 Silverado 5.3 198k miles, and was trying to diagnose a problem where it would run fine when you accel slowly, but the minute you apply any load it would back-fire. 7 people have attempted to find the problem, and failed. I bought a small scanner, and it came up bad crank sensor. I replaced the crank sensor, and now it will turn over, catch, but dies right away. I still get a EGR low voltage on key on, but that has never effected starting to this point. I have replaced the following in trying to get the original problem fixed. New: Fuel pump, TPS, plugs, wires, fuel cap, fuel regulator. Cleaned: EGR, PCV, MAP, MAF. Desperate for help thanks you.

Fuel guage installed all pressure was normal before installing the crank sensor. That was one of the first suspects, "thinking fualty fuel pump" It was about 53 at key-on, then varied at about 60 at high RPM. WIll check spark next. Thanks for the suggestions.

1999 Silverado 5.3 V8
The other day on my way to work, my truck died. I stopped, and restarted it, and it kept going for two more blocks before dying at an intersection. It will crank strongly, and sometimes it'll start but it won't stay running. It sounds like it's either starving for air or starving for gas. The fuel filter was old so I replaced it, I've Triple Checked the fuses under the hood and inside the cab. The Fuel pressure regulator seems to be okay, and the fuel pump IS engaging. We've checked the plugs, fuses, Fuel pump, regulator, and filter. When it DOES turn over, it'll run fine for a few seconds, untill it starts to sputter and die. Sometimes right when it's about to die, it'll rev back up to normal idle. Completely Dumbfounded. I did remove the new filter today to see if the gas is the filter is discolored, and it's as normal as can be. Any help would be greatly appreciated.