My truck won’t shut off with the key.

[AuroraGirl]

With whites out!

Those tires are only from 1995 or so, but yeah you get the spirit!

 

[Rusty Nail]

It's true I vote white out.
15x8s like that are easier to find than 15x10s and i've got three that need a new home....but that's a different thread.
I like your truck new guy. And it's Quadrajet !

 

[Ricko1966]

Have you installed anything electrical? A radio maybe.You wouldn't have to do something electrical under the hood to create an electrical feedback situation.The ignition switch would be my suspicion, unless you've been doing some wiring.

 

[semperfiguy98]

I may be late to the show here, but in my experience when your truck won't shut off with the key switch, it's been a problem with the alternator wiring. I've seen the alternator feed back to the ignition switch with enough juice to keep the truck running. Try shutting off the switch and when it doesn't shut off, pull the plug out of the alternator.