I used to have a 1967 Chevy Van that I had to start with a big ole screwdriver. I'd turn the key and climb under, reach up, and short out two terminals on the solenoid. Made some sparks but I got good at it to minimize that. Would happen randomly for years. I guess it was the neutral safety switch, once had it in drive and it started and started to drive forward. Used to have to climb underneath in traffic in winter in puddles whatever. My green army coat didn't care, could handle that. The good old days.