I have a 2005 Chevy blazer, I drove to a park one day and when I went to turn the key to start absolutely nothing happened, the lights stayed on but no crank no clicking or anything, so ended up having it towed home.
since then I’ve replaced :
alternator, battery , neutral saftey switch, ignition switch, tested starter and even got it to crank over when I bypassed everything else... but what is it that’s keeping it from starting ?