LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Battery Junction Box Wiring Diagram?

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Old Sep 30, 2007 | 12:46 AM
  #1  
fanaticrockford's Avatar
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From: Moorhead,MN
Battery Junction Box Wiring Diagram?

First of all the vehicle is a 95 Firehawk.

I believe there is 8 wires coming out of the junction box. The problem is that with these wires hooked up the battery will drain. Different wires will drain the battery at a faster rate. If i unhook them the battery voltage will slowly come back up in voltage. I thought i narrowed it down to a few of the wires(one that controlled interior lights and one that controlled ignition switch) but when i went back and checked others suddenly started doing the same thing.

With all the wires hooked up i can hook a jump box up and start the car most of the time. It runs fine if it starts since the alternator is keeping up with whatever is draining the battery.

I have looked on http://shbox.com/page/index.html and only found a wiring diagram for one of the wires. Anybody know where i can find a diagram for all eight wires?
Thanks in advance,Joe
Old Sep 30, 2007 | 01:56 AM
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Have you made sure you dont have any interior lights on? The glove box switch broke off and the light was staying on draining the battery.
Old Sep 30, 2007 | 02:24 AM
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The wire that ran the interior lights isn't the biggest problem right now. It only drains the battery in millivolts. It probably is a light on or something.
Some of the other wires when connected drain the battery down from 12 volts to 2 volts in the matter of seconds.
Basically once the car is jump started and running. If i shut the car off and immeadiatly try and restart it there i nothing since the battery voltage has already dropped to under 5 volts.
Basically i just need a wiring diagram so i can go thru all the circuits.
Old Sep 30, 2007 | 08:02 AM
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Remove fuses to isolate the circuits. It will narrow it down farther than pulling off the fusible links.
Old Sep 30, 2007 | 09:43 AM
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It sound more like you have a dead cell or cells in the battery. Have it load-tested and see what happens.
And +1 for Shoebox - try using the fuses to isolate the circuits
Old Sep 30, 2007 | 10:18 AM
  #6  
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Sounds like the battery is the problem to me....dead cells.
Old Sep 30, 2007 | 10:19 AM
  #7  
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it takes power to create power ie need 12 volts at the batttery to make the altr work right . If its drawing that much voltage sounds like a short but you would see that .
Old Sep 30, 2007 | 10:21 AM
  #8  
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Originally Posted by chevyinside
it takes power to create power ie need 12 volts at the batttery to make the altr work right . If its drawing that much voltage sounds like a short but you would see that .
Huh? Once the car is running you can pull the battery out of the car without issue.....the alternator doesn't need the battery to work.
Old Sep 30, 2007 | 10:32 AM
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From: waterloo, iowa
ok lets start off with this....
A: there i nothing in your car that can drain your battery that fast.
B: this is a simple problem, bad battery.
C: REPLACE THE DAMN BATTERY
Old Sep 30, 2007 | 10:46 AM
  #10  
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From: Four Oaks, NC
The alternator will provide the juice to run the car once it is started.
The battery is a storage device. It has 6 cells, each storing (or producing) approx 2.3 (+/-) volts. If one or more cells does not work or is weak, the voltage drops real fast
Old Sep 30, 2007 | 11:19 AM
  #11  
fanaticrockford's Avatar
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From: Moorhead,MN
The battery is a brand new ac delco battery. It has been tested multiple times and i even had it switched for another one because i didn't believe them. Hell i have even used a battery from one of my other cars and the problem is still there.

I have removed every fuse and relay from the fuse box under the hood and every fuse and circuit breaker from the side of the dash. There is still the one wire that pulls power for sure (the ign circuit one i believe)
Old Sep 30, 2007 | 09:55 PM
  #12  
chevyinside's Avatar
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doing a drop test how many amps does it pull?

and with the exception of self exciting alernators , it takes electricity to make the alt charge the battery ,
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