My 97 GMC K1500 Sierra's enigne quit running the other morning. the alternator is 2 yrs old. battery good. Engine rebuilt at 82,650. Current mileage 113,000. Engine will turn over fine. Acts like not getting fire.. Any suggestions? I thought about the PCM or Ignition module, but do not know what they look like. Are they hard to replace?

Check your fuel pump pressure first. There should be a test port in the fuel line right near the F/I unit. Not enough pressure = no start.

Just curious, why did you rebuild at 82k?

That exactly what happend to my 97 Sierra. It was the fuel pump and sending unit on mine.

Thanks, Will check this out.