I have a 1984 i will charge the battery and 3 to 4 hours letter it is dead will not even turn car over i have pulled the fusses one at a time but no luck. it has a new battery. i have unhooked the alt and still the some thing.

 

Take the battery back and get a new one.

 

it has a new one and did not help.

 

alternator! or the wires leading to the battery...not re-charging. autozone kept saying i had hot-start issues, as i bought a new starter, battery, and alternator from them...well 1st we found the battery was a bad one, then we found the alt was bad too...now it seems to run just fine! imagine that!

 

thanks I will look into that.

 

I will take it and have it check. thanks

 

Same crap happened to my '80 when it was on the road, what I found was massive corrosion on the battery cable (ground) where it attached under the car, it was corroded in the strands of the cable and the ground lug. Replaced the cable and it worked just fine. Good Luck,,, Peace, Moosie

 

Disconnect the battery (neg cable ), charge the battery up overnight and measure the battery voltage after it sits for an hour, charger disconnected. The next day, measure the battery voltage again, it shouldn't fall more than about 0.1 volts. Batteries are considered fully charged at 12.9 volts or higher and discharged at 12.0 volts and lower and linear in between. The battery may test good at the store but the store cannot tell if the battery has high internal leakage current in the 10 minutes they are fooling around with the battery. If your battery holds a charge overnight, then you need to find out where the excessive leakage current is in your electrical circuit. GM says leakage current should not exceed 50 milliamps. My 87 draws 27 ma. You should measure the leakage current with a test meter in series between the neg battery terminal and the disconnected neg cable. Wait for the courtesy lights to time out and then measure the leakage current. Pull the courtesy light fuse so you can keep the passenger door open and pull fuses one at a time while watching the ammeter. At night, check the underhood lights, vanity mirror lights, center console light, door map lights. Don't leave your keys in the ignition because this keeps your anti-theft circuit on. Do you have a radar detector, aftermarket alarm or radio or audio amp? Check em.
Let us know what you find since there are other circuits that have fusible links and circuit breakers.

 

thanks, but it turned to be the relay for the primer pump for the fuel pump.