No start all new power components

[702castillo]

Hi so I have a 91 gmc sierra c2500 5.7l
I’ve done the starter, alternator, battery, and a new belt and I’m still having the same issue where most days it won’t start for me it doesn’t crank or anything but when it does run it stays on just fine so I don’t think it’s the ignition switch but if you guys have any suggestions I’d appreciate it I don’t wanna have too sell it !

 

[Komet]

A new belt and it still doesn't start! Well, one thing that would be nice to know is if you're getting +12v on the small PPL wire at the starter when it's doing the no crank thing. If you do, then the ignition switch is probably working and the problem is the starter or juice going to the starter (battery cables). If you don't, there's a problem between that ring terminal and the ignition switch.