Electrical problem


#1

1989 cadillac alenta, 59,000 miles, had the key on with the radio playing, after about 30 minutes entire electrical system went dead. put a battery charge on the post under the hood and still dead.


#2

Hmm, I’d check all connections to the battery…you can bring the battery to Autozone, or some other auto parts place, and have the battery load tested…it could have a bad cell or two, and won’t hold a charge.

Disconnect the negative battery cable, and reconnect it…do you see any spark? tiny spark is okay, but a big spark means that there is a short. Check the fuses to be thorough.