Have a 07 classic silverado flex fuel turns off. Wait a few mins then turns off again. Yesterday didnt turn off once. I can almost feel when car is gonna turn off. Idles bad.
I heard it could be crank position sensor.
A CPS is a cheap and easy fix if that's what it is. You should have a CEL light on the dashboard lighting up. Have the codes read for free at AutoZone or Advanced Auto Parts.