Hi,
My truck will die after driving it for awhile. It seems to happen at a stop or leaving it running for a bit. The good thing is that it starts right up and runs well. Replaced 1 vacuum line from the PVC valve to throttle body. The other lines appear to be ok. Does anyone think it could be the injectors ? they are the original injectors. Not sure what else to do. Any help would be thankful.

91 Chev C1500 5.7 V8

Mike

 

If I was going to throw a part at it, I would replace the ICM in the distributer. I had one that would occasionally kill the motor like you describe until one day it refused to start. Use lots of thermal paste if you change it.