So my 84 cannot start after 12 hours of sitting. We replaced the alternator and took it for a long drive the might before. Everything seemed good and the battery gauge thing was reading between 13-15 the whole time. It does work. So maybe somewhere from the alternator to the battery is bad idk. Im just looking for common battery drains in fieros and other battery issues.
The battery is new, however its a very inexpensive walmart battery and its been jumped and charged a few times.

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84 stock :(

With everything turned off, take a 12v test light and ground to metal body/bolt and with light touch every fuse (both sides).

Whichever one gives you a dim light or bright light on test light is the circuit where your parasitic draw is coming from.

Be sure to push the door jam dome light button in with your other hand or that circuit will mislead you.

Thank you, will try tonight

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84 stock :(

See my Cave, Battery Leaches

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Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)

The Ogre's Fiero Cave

Before you take all that effort, unhook one of the battery cables overnight and hook it up in the morning and see if it's drained still.

Thanks, will do

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84 stock :(

Headlight motors can be a big drain. Unplug them and see if it gets better.

So i figured out that once the car is running, its fine because the alternator is keeping it running, but not charging the battery so when i go to start it next morning it always has to be jumped

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84 stock :(

quote Originally posted by gb.84.fier0: So i figured out that once the car is running, its fine because the alternator is keeping it running, but not charging the battery so when i go to start it next morning it always has to be jumped

have AZ Wmart etc test the battery.
If has dead cell etc and keep trying to charge can cause many problems.

Im going to bring the fiero to oreillys and have them test the whole system

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84 stock :(