Chrysler Repair: 1997 Chev Silverado 4X4, crankshaft position sensor, engine crankshaft

Question
I hope you can help me!
I own a 97 Chevy Silverado.  It starting stalling(on the hwy. while driving; all of a sudden, nothing)it would then restart and stall about 5 to 6 other times on the short ride home. I changed the fuel filter and thought it would be fine.  It is still stalling and yesterday I took it for a short ride; it stalled and would not restart.  We had to tow it home.
I would appreciate any help you can give me regarding this issue.

Thanks,

Answer
Hi Dave,
This sounds to me like one of the solid-state engine rotational position sensor is in the process of failing. They do this beginning during the warm up to operating temperature, then recover when given a chance to cool off. Finally they fail even when cold.
There are two sensors on most engines, both mounted externally for easy removal. One looks at the surface of the flex plate at the rear of the engine (crankshaft position sensor) the other looks at the cam shaft sprocket (camshaft position sensor). These sensor time the spark and the fuel injection pulses. Beginning around '97 a new set of codes were devised to describe various failure of the engine control system called OBD-II. It was generally the case that you could not get the code numbers which would tell you which sensor was failed unless you had a plug-in code reader. In later years the ability to get some sort of readout without a reader was added, but I am not knowledgeable about those techniques for GM products.
You could try a Chevrolet/GM category here for expert advice, or the alternative is to buy the two sensors and replace both of them. They come with a paper covering on the tip which serves as a self-destructive spacer. You put the sensor in the hole and press it against the surface that it senses, then secure the clamp. As the engine rotates the paper wears away but leaves the sensor tip at the proper close spacing that it needs to do its job.
Roland