Engine starts chugging and will stall out

Vehicle had no previous signs that something was going bad. No sputtering, etc. Being that I had (within last 4 months) replaced the fuel filter along with a bad fuel pump, I looked elsewhere towards the problem. After noticing that I had a weak spark, further investigation revealed that I had a bad coil, cap and rotor. So I replaced all three, along with all new spark plugs and wires. Same problem still existed. I was then told that the distributor pick-up could be bad. Which it was severely worn, so I replaced it also. Same problem still existed. I then looked back towards the fuel. So I checked fuel pressure by dissconecting the fuel lines directly behind the carburator (to maybe rule out the possibility of a bad regulator. I did not test with a guage, but the fuel pressure was weak (5-10 lbs. Maybe) streaming from the dissconected fuel lines.
This pressure I am told should be around 50 lbs. A mechanic that was standing there said that was definately a bad fuel pump. Telling him that I had recently replaced it, he still insisted that it was bad because I had bought a cheap one from the parts store. SO, I drained and dropped the tank again. Replaced a new sending unit (with new pump and new sock) and new fuel filter again. Started it back up.... Thinking all was well.... Then it stalled! It will sometimes restart right away again, and sometimes it will not. It will run for about 10-15 minutes before it stalls. But if I sit in the cab and keep my foot on the gas, I can keep it form stalling. Comepletely let up, and it stalls. Once the vehicle is cold again, it seems to start again. Once it warms up, it seems to stall as described (with no real sputtering or anything) it just dies.
I am now thinking that I could be dealing with a bad Coolant Sensor? Or could this be a bad crank sensor or something? But will say that I am leaning towards some kind of sensor, relay, or module. Where else can I check or look for faulty parts? Your guess could do no harm at this point! (Lol) Thank you for any suggestions! My wife and daughter would be extremely grateful if I could get my truck running again and they could have the car back to themselves! Thanks from all of us!

Engine Performance problem
1993 Chevy Silverado V8 Four Wheel Drive Automatic

what will make a truck idle out of gear but when u put it in gear after a second it cuts off and if u reve it up to 2500 rpm it cuts out but u let off it stays running?

Why do people change all other parts except what you tell them to change that will fix the problem.

Hi, I have a 93 silverado truck with a 5.7 and was doing some trouble shooting. I unplugged my fuel pump relay while the truck was running and it died. The manual said to replace the oil pressure switch, which I did.

It's been an on going thing with the truck shutting off when driving or when I turned the truck off it wouldn't start back up for about 45 min. To an hour.I had it to the dealer twice and they couldn't tell me. The problem wouldn't happen all the time. It could be twice a week, twice a month or twice a year, so by the time I would get it there the truck would be running and they said they can't find nothing wrong because the problem is not happening now. So I started trouble shooting myself. When the truck would act up I check for fuel or spark, had spark no fuel. So I started at the fuel pump relay, replaced that and it ran fine for a while. Then it happened again. So I put my shop manual in the truck and test light in the truck and waited for the next time. When it did I probed the relay plug and it was fine and when it came to unplugging the relay when the truck was running that's when I found that the oil press switch was bad.

On some of those trucks they had issues with a engine ground. For some reason it used the distributor base as the ground. Next time it acts up take a piece of insulated wire and make a ground from the engine to the chassie have someone to turn the key on and you listen to see if the fuel pump turns on. Also have you had a engine scanner connected to it? Does the scanner and the pcm communicate? If it doesnt you may have a computer iussue the fuel pump driver may be malfuntioning in the pcm. Also you may want to get a repaire manual and check all your computer grounds if one is loosing its connection that could be the issue. I hope this helps with your problem.

I started having troubles with the fuel at first, so ended up replacing everything for the fuel system including, lines, filter, strainer, fuel filter, injectors, tbi rebuild kit and fuel pump assembly. It ran fine for about 2 weeks then had a loss of power, id hit the gas and it wouldn't seem to go anywhere. So I checked the fuel filter and strainer, both ending up to be fine and didn't throw any codes. So I replaced the tps sensor, egr vacuum solenoid, purge canister valve. Everything short of a iac valve and new egr that had been put on 6 months ago along with my upper end head gasket set. Now once replacing everything just listed, it will run fine, but sometimes on start up, it will idle up to 1500 rpm and shift hard into gears, after a few mins of driving the code goes away, and proceeds to run better, but if you push the pedal to the floor to pass cars, there is little to no acceleration. Also while driving, there will be no codes, out of no where the check engine light will come on, the truck will stall out and want to die, (has died before but starts right back up) so I have to lightly feather the gas, it will start to pick up and the code will go away, and begin to run again as it was. Im out of ideas and haven't had time to get the codes checked.

I was driving the other day, and I turned my truck off and when I started it back up, I backed up about 10 feet and it died. It wouldnt start back up. The same day I changed the fuel filter and it started up. The next morning I was driving and it died again on me. I let it sit at my house for a few hours and I tried to crank it and it started up again. Ive noticed it seems it dies when it gets to operating temperture, and when I let it cool down it will start up. I need help to know why it may be doing this.

I took the ignition module off and went and got it tested. It tested good, so what other reasons might it be that it dies on me.

The truck starts and runs fine until it is parked for a short while (maybe 15 min) then when I go to start it again (while still warm), it has a hard time running. It wants to stall unless the gas is pumped to keep it going (but then just barely). This only lasts for about a minute then it runs smooth again as if something just got cleared out of the gas line or the choke just got unstuck? I recently changed the fuel and air filter with no improvement. Any suggestions would be appreciated.

No, the check engine light has not come on. I found a similar question someone else asked that a technician answered. He said it could be the throttle position sensor, the idle air control valve, vacuum leaks, or the EGR. I will look at these things unless you think it might be something else.

Correction: the engine does start 99% of the time, but almost immediately it starts to idle rough and if I don't pulse on the gas it almost always dies. Again, it does this for about a minute, then its totally fine until the next time I stop for a while then try to start it again while still warm.