Engine stalls while going down the road?

No leeks of any sort from what I can at least see. Do you think it is one of the following: PCM, Computer, or Crankshaft Position Sensor?

Thanks

Yeah I had it scanned at a dealership, they ran a diagnostics test and said nothing was wrong with it, I then took it to a parts store and did it myself and no codes were stored in history and nothing was out of the ordinary.

Truck has the 327

I dorve approx.75 miles, everything worked fine, when the engine ran high rpm's and had trouble getting up to 30-40 miles an hour. Turned the corner after approx. 1/2 mile and the ngine died. Tried turning it over and it would but not start. No service engine light. Called for a tow, towed back the 75 miles, dropped off in driveway and it turned over and ran normal, prob. Due to the cooling off. Lately I've had low coolant light come on I would check it and seemed normal in the overflow, would add some more and would stay off for a few months, last two days ive noticed drips of coolant. And now with this no low coolant light either. The last few weeks, ive noticed about 2-3 times it would lag, hesitate with power but it was just momentary and didn't last like this. I've also had over the last 6 months a service engine light come on and read the code and it was emmisions, the technician told me it was common with chevy and mostle erase the code when it comes on and thats about it, its been happening more lately. I didn't drive it tonight after the tow because I didnt want it to stall somewhere. But starts and runs fine.

I've had it idleing for about 20 mins and drove approx. 1 mile and got it up to about 45 mph. It seems just fine now, but now very cautious to drive it any length. All the gauges seem normal, still no check engine light. I replaced the fuel pump and filter about 1 1/2 yrs ago. When it was the pump it just died and no starting at all. What about the fuel regulator.I just dont understand why it died or hesitated before, why would the temp of the engine effect the power or fuel/electrical. I5t must be getting spark? If its running now.I dont know how to check this or the fuel pressure however. How do I address the evap emmisions. They sadi it was prob. Just my fuel cap and very common in the chevy trucks, but I dont know what else to look for or check/replace.

Ok.I let it idle for a total of approx. 1 1/2"hrs. Driving it around the block. The I went to the auto store got seafoam and oil change. Went home and nothing, worked just fine. When the truck stalled it was normal temp. And I don't know how that would effect the rpm's. It idled at 5000, if that matters, I think that also is normal. Now i'm nervous to drive it out of town, maybe just some crap going through the gasline.I'll check the pressure, and what should I address about the emmisions error code, what should I check - do? I appreciate your help and any ideas are helpful.

Last night our truck hesitated very briefly when pulling away from a stop sign. Ran good for a short time then died at a stop light. It will briefly start and (Kind of run for a few moments then die again. If I wait for a while I can get it to do the same thing, but it never reaches full idle before it dies.

I have the very same problem, turned out to be the fuel pump.

The transmission was slipping and the engine was putting and dying out about 20 minutes into my 30 minute drive out of the blue with no previous history of this problem the engine light did NOT come on at all while this was happening any ideas what this could be and an easy fix for this? Thanks
derek

My truck did have a high idle and now it will not idle. It runs great but when you take your foot off the gas it shuts off. No codes. Catalytic converter is not bad.

Driving down freeway truck started acting like I was breaking or if it was out of gas sputter when tired give gas and wouldn't go pulled over and truck died changed the etm and crunk up for2 seconds then died tried again crunk up went drive off and acted like no gas and died got it going again by hitting gas tank under truck but soon in reverse or drive and give gas dies again what's the problem