1993 GMC 1500 Engine dies while driving

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GMC Sierra 1500 Questions - Truck suddenly stops running ...

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CarGurusJul 11, 2013 - Truck suddenly stops running, acting like it's out of fuel. ... start it and let it run until it dies then check the pressure and shut the key off. ... Was running fine and then turned off as if the ignition was turned of. .... Well mine was a loose battery connection that just shut down the vehicle completely while driving.

1998 1500 5.2 Shuts Off Randomly - CarGurus

www.cargurus.com > Questions > Dodge > Ram 1500

CarGurusAug 29, 2011 - I let it sit for a second then tried to start it back up and it wouldn't start.... 2006 ram 1500 randomly dies while driving 13 answers ... truck started outrunning fine but would randomly die. wait a few ... Used GMC Sierra 1500".

GMC Sierra 1500 Questions - started stalling and dying ...

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CarGurusJul 28, 2008 - The truck starts and dies. Have to give a little gas to keep running.While driving have to 2 foot it so it won't die. Wants to die when I come to a ...

Engine Dies and Then Starts Right Back Up

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It's gotta be the distributor. They are a common fault for that model and I actually have the same model as you. They are very sensitive to water as well. Easy part to replace if you are a do it yourself kind of person. If the distributor goes bad, you can crank it all day long and it wont spark.
You say your rpm gauge was steady the whole time? That sounds like something else but i'll stick with my original guess. Throw a used one in it from a wrecking yard if you like. Make sure to keep the adjuster bolts in the same place as your current position as that is your timing.
Distributor is located on the right side on the top of the engine and have the wires for the spark plugs going into it. you will need a 10mm socket to remove the 2 bolts holding it in. Its easier to do if you disconnect the air intake as well by simply using a screw driver. Any more questions, I'd be happy to answer. All the best

Mass air flow , crank sensor . I wouldn't discount anything . Having a scan tool that can view engine sensor data would be a great help too , testing fuel pressure and flow and back pressure test the exhaust .
058 Engine Hard to Start or No Start Lean Fuel Condition
055 Engine Hard to Start or No Start Scan Data for EGR
057 Engine Hard to Start or No Start Ignition Module Test
007 Catalytic Converter Testing

could be faulty egr valve, faulty idle speed control, faulty engine coolant temperature sensor.stuck open pvc valve, i would have vechicle code scan first before buying new parts.meant to tell GMC SIERRA -C1500 AND C2500 CAN BE A 4.3 ENGINE OR A 5.0 5.7 6.2 AND 6.5 DIESEL ENGINE.

When your replaced the pump did you replace the fuel filter? You may have a fuel pump relay causing you some grief. I believe it is located in the engine compartment in the fuse center on the left inner fender. Check the relay and any related fuses. Check the electrical connection at the pump. They had problems with some of them and they would get kind of hot and distort and corrode. They have new updated ones that can be easily installed.

Could be your crank sensor has gone bad.

they might have not put the proper gap on the plugs..and might have over filled the engine with too much oil..

your description sounds like the gears inside the the same differential you just replaced.

try changing the fuel pump. When the tank goes empty it sucks the dirt into the lines.

I'm guessing when the engine light comes on, the computer is going into a default mode -- enough to keep the engine running, but not efficiently or with power. You need to get the error codes checked to determine what is going bad. It may be a throttle position sensor (TPS), or a crank or cam position sensor, which feed critical information to the computer.