1999 Suburban LT 5.7 Vortec! Yesterday I replaced the everything switch (turn signal, cruise control, wipers, etc...) and when I put the key in and turned it, everything worked just fine (didn't start it due to the battery being on it's last legs). Today, nothing related to the ignition switch works at all. No radio, no wipers, no turn over/start. There's zero power to the radio at all it seems. I checked the wiring and found no pinched/kinked wires. The security system is gone and everything that was wired in for it is either gone or spliced properly. Does this mean the ignition switch has gone teats up on me?

PS- the screws that hold the ignition switch in place look like Torx bits. Not a Torx screw head, but a Torx tool. Anyone know offhand what size they are? They're smaller than 4mm and I don't have anything smaller than 4mm.

 

Its not just your battery thats gone completely now no?