79 electrical issues
 

Got a 79 that was running good. originally a six but swapped a 350 several years ago. all of the sudden I have nothing when you turn the key. headlights would not come. dead as it coupld be. battery tested at 12 volts. I jiggled wires and checked all connections. I waited a few minutes and tried again. This time I had headlights and it did crank. Pullled it under the shed and killed it and cranked it 5-6 times. Went back about 1 hour later and dead again. Battery still shows 12 volts, but no lights, nothing at the key. I checked the ground to the battery and it is still tight to the motor and Battery terminal.

What to look for next?

Re: 79 electrical issues
 

check all your connections starter fusible link etc..also make sure that your ignition switch is good

Re: 79 electrical issues
 

checked the starter and alternator. There is s junction block on the firewall with 2 wires coming in from the right (if you are facing it) and nothing on the left post of the junction block. Is that normal?

How do you check the key switch without tearing the column apart?

Also where are the fusible links?

Re: 79 electrical issues
 

ok update.

I have 12 volts to the alternator, junction block on the firewall, and the fuse block in the cab.

Lights still will not come on and entire interior is dead. turning the key is dead. Am I looking at the ignition switch?