I just purchased a 91 f250 xlt lariat with a 460. As I'm driving it home it randomly dies. So I towed it home. Once home I checked my battery it's reading 12.4v, I go inside to turn the key and nothing registers inside the dash cluster. I have headlights and dome lights even a slight beeping. Any suggestions would be greatly appreciated this is my first project car and I'm fairly new to working on cars.

 

I purchased the truck through a private party because the torque converter is going out and I thought it would be a good first project truck for me.
If I turn the key nothing happens not even a fuel pump wirring. I only know the voltage because of my jumper box. When I turn the key it acts as if it has no power like a dead battery. None of the gauges work and the beeping is just alerting me that my lights are on. My ground from my negative battery terminal looked a little corroded where it bolts to the body and I'm thinking about re routing to one of my alternator bolts that you back off to adjust the position of the alternator so you can remove the belt. Is that a good idea? Also according to one of the articles that I read it suggests I should replace the ignition coil or relay depending on what it has .

 

Update I replaced the ignition switch and still nothing

 

on older cars and trucks most mechanics when working on jobs like your start by cleaning every ground wire, IE battery to block.battery to body . than check the power feeds which in most cases comes from the starter relay VIA a roughly 6 inch long fuseable link wire which can look good yet not be,
good luck

 

Thank you for that information I've been looking for the relay but nothing is labeled any advice on identifying the relay

 

on a 91 the starter relay should be a black relay bolted to the firewall that the positive battery cable runs to first,off that is the fusible link,

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