Electrical problem
1997 Chevy Silverado V8 Four Wheel Drive Automatic 119,00 miles

truck will not start intermintent. It seems to happen when we have had rain but not all the time. I removed and repaired the window wiper motor and hosed off the debris before reassembly. Tried to start next am, turns over good will kick back slightly but won't start. Waited 2 days and it starts fine.

i would first replace distributor cap and rotor if it hasnt been changed in a while also change plugs and wires too if they are old. sounds like moisture is arcing out the ignition system.