Hello everyone, I need help diagnosing my electrical issue.
2003 GT
My starter went out luckily when I was at home. I ordered a new one, installed it, then the issue started.
Once I connect my battery to the car. All headlights, horn, emergency flashers, dome light all work. But as soon as I turn the key over to start the car, everything turns off and doesn't come back on.
I figured something with the starter, so I pulled it off again and used just the battery connected to the starter to see if it was good. followed this video (https://www.youtube.com/watch?v=6x2hIOtBfzE). Turns out the starter was a dud, only the starter solenoid was good. I returned it and got a replacement. With the lesson learned I test the starter when I received the replacement. It passed so I installed it, installed the battery again. And Same issue of all power being cut once the key goes to starter.
I've looked over most of the fuses I think but nothing is bad. At first I was thinking it would be the fusible link but I don't think it would be with everything turning back on when disconnecting the battery and reconnecting it.
TLDR: replaced starter, all electrical items works until Key is turned to starter. Then ALL power is cut. no lights, no door buzzer. removed the battery and replace all electrical items work again until key is turned to starter.
Thank you all.