blazer won't crank replaced starter, ignition switch thinking maybe nss. can't find location have a haynes manual nothing. any help

 

Did you check the crank fuse ? also i think 2nd gen blazers have starter relays

 

thanks I'll check relays replaced nss still no start

 

You have to walk through the system. There isn't a lot of points to test at.

A schematic applicable to your truck can be found in THIS THREAD.

 

thanks guys found 1 loose ground tighten still nothing replaced relay nothing. I can jump across relay and & start. the guy at auto parts store said maybe its the key switch. I dont think so any Ideas. everything works but start thanks again for your help