Electrical: No Power, Good Battery
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Joined: Aug 2007
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Electrical: No Power, Good Battery
1988 4X4 Bronco 2, 2.9 engine V-6 EFI
Here's my problem: I was trying to charge a dead battery, with the car running I installed the dead battery, ran engine for 15 min, then drove 1/4 mile and truck completely died. Tried starting engine, nothing. Swapped back to my good battery and have no power(headlights, dash, starter) checked fuses under steering and changed starter solenoid..still no power
Good battery and connections Need Help, Thanks
Here's my problem: I was trying to charge a dead battery, with the car running I installed the dead battery, ran engine for 15 min, then drove 1/4 mile and truck completely died. Tried starting engine, nothing. Swapped back to my good battery and have no power(headlights, dash, starter) checked fuses under steering and changed starter solenoid..still no power
Good battery and connections Need Help, Thanks
Hotshot
Joined: Dec 2006
Posts: 14,069
Likes: 17
From: Melbourne, Ky
Is it possible you have 2 dead batteries? Try crossing the hot posts on the selenoid, make sure your truck is in neutral if it's a manual. Check the ground cable at the frame or engine block where it is connected.
You really shouldn't charge a dead battery with your vehicles alternator. Alternators are designed to keep a battery charged up, not to charge up dead batteries. Often times when an alternator goes out, the vehicle has bad batteries. The alternator was having to work too hard to keep the batteries charged. Is it possible that the batteries are shorting out in the alternator?
You really shouldn't charge a dead battery with your vehicles alternator. Alternators are designed to keep a battery charged up, not to charge up dead batteries. Often times when an alternator goes out, the vehicle has bad batteries. The alternator was having to work too hard to keep the batteries charged. Is it possible that the batteries are shorting out in the alternator?
Hotshot
Joined: Dec 2006
Posts: 14,069
Likes: 17
From: Melbourne, Ky
Is it possible you have 2 dead batteries? Try crossing the hot posts on the selenoid, make sure your truck is in neutral if it's a manual. Check the ground cable at the frame or engine block where it is connected.
You really shouldn't charge a dead battery with your vehicles alternator. Alternators are designed to keep a battery charged up, not to charge up dead batteries. Often times when an alternator goes out, the vehicle has bad batteries. The alternator was having to work too hard to keep the batteries charged. Is it possible that the batteries are shorting out in the alternator?
You really shouldn't charge a dead battery with your vehicles alternator. Alternators are designed to keep a battery charged up, not to charge up dead batteries. Often times when an alternator goes out, the vehicle has bad batteries. The alternator was having to work too hard to keep the batteries charged. Is it possible that the batteries are shorting out in the alternator?
More Turbo
Joined: Mar 2006
Posts: 687
Likes: 1
There should be a 14 gauge green fusible link that is attached to the starter relay
where the positive battery is connected. the link should be connected to a black/
orange wire through connector C110, to splice S104, into the alternator. that appears
to be the charge line, and also the one that carries current to the ignition switch.
where the positive battery is connected. the link should be connected to a black/
orange wire through connector C110, to splice S104, into the alternator. that appears
to be the charge line, and also the one that carries current to the ignition switch.
Post Fiend
Joined: Jun 2002
Posts: 13,873
Likes: 3
From: Atlanta GA
> with the car running I installed the dead battery
Not only is this very dangerous to you, it borders on being very very VERY stupid.
The reason for that strong language is it was taking a BIG chance on the battery blowing up in your face and blinding you for life. If that battery blew up, at the very least it probably would have blown the hood off the vehicle and covered you from waist to head with battery acid.
I know a person this happened to and all he was doing was using a match to see what he was doing connecting cables on a car shut off. An elementary school teacher blind for life. You would be surprised at the shrieking girly noises and screaming a big guy will make, covered with battery acid.
Doing what you did there is a chance of completely nuking your whole electrical system including your vehicle's computer.
There are many fusible links under the hood, including at least one in the wiring harness on the driver's side. What you are going to have to do, is remove everything from the starter solenoid. Then start adding wires until you figure out what circuits are blown and which fusible links are nuked. Also, the relays and TFI maybe be nuked too.
I have a 1988 myself and a factory CD repair manual, so I can get you through most of the stuff. You are going to need a digital volt meter (DVM) and test light to do this correctly and you have to unwrap the complete harness so you can pull out individual wires.
For now, charge your battery out of the vehicle, once done, let it gas out for a couple of hours (don't touch it), put it in the vehicle, and cover the top/vents with a wet cloth.
With everything disconnected from the battery and starter sol. then attach the positive cable. Then attach a test lamp from the neg. terminal to the neg. cable and see if the test lamp lights up.
Not only is this very dangerous to you, it borders on being very very VERY stupid.
The reason for that strong language is it was taking a BIG chance on the battery blowing up in your face and blinding you for life. If that battery blew up, at the very least it probably would have blown the hood off the vehicle and covered you from waist to head with battery acid.
I know a person this happened to and all he was doing was using a match to see what he was doing connecting cables on a car shut off. An elementary school teacher blind for life. You would be surprised at the shrieking girly noises and screaming a big guy will make, covered with battery acid.
Doing what you did there is a chance of completely nuking your whole electrical system including your vehicle's computer.
There are many fusible links under the hood, including at least one in the wiring harness on the driver's side. What you are going to have to do, is remove everything from the starter solenoid. Then start adding wires until you figure out what circuits are blown and which fusible links are nuked. Also, the relays and TFI maybe be nuked too.
I have a 1988 myself and a factory CD repair manual, so I can get you through most of the stuff. You are going to need a digital volt meter (DVM) and test light to do this correctly and you have to unwrap the complete harness so you can pull out individual wires.
For now, charge your battery out of the vehicle, once done, let it gas out for a couple of hours (don't touch it), put it in the vehicle, and cover the top/vents with a wet cloth.
With everything disconnected from the battery and starter sol. then attach the positive cable. Then attach a test lamp from the neg. terminal to the neg. cable and see if the test lamp lights up.
