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Well, I asked this before.... can't find the old post, so I'm asking this again. I bought a new battery because from time to time, after 24hrs of the car sitting still, I would need a jump. It happened again today which makes me wonder if its the alternator. Everyone says it is, but check this out; on my digital cap with the car running 30min after I needed a jump, it read 14.4 volts, and with the car off it read 12.8 volts. I am really REALLY hoping the alternator isnt the problem. I think it has something to do with the deck. The only time I happen to need a jump is when I physically press the "off" button and then remove the keys. How can that be a problem? Thats where you guys come in. You all know more than me, so could the fact that on my AVH-P6500DVD I have the emergency brake wire tapping into the ground wire so that I can watch DVDs while the car is in motion have anything to do with it? If it is the alt., can someone send me to a link where i can buy an alt and another link thats a how-to on installing?
1999 SE White
AVH-P6500DVD
Infinity Reference 6500CS
Pioneer 5x7s
Punch 360a2
Punch 500a2
Adire Tempest in a custom sealed 3.4cuft box
Modded Xbox
Still need Midnight Cloth Headrests... and if somebody has fold down rear seats....
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sounds like you have a shoert some were or it could be you e brake thing
something is draining your battery when the car is off
doesn't sound like an alternator problem because if it was that the car wouldn't run more than 4 hours on a new battery
or something like that
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Hard-core CEG'er
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Do you have any corrosion on the battery terminals?? Because if you do it can keep your battery from getting a charge. The cap going up in power means your alternator is working. I had this problem also and autozone tested it and said I needed a new battery.. turns out it was just corrosion.
2000 SVT Black/Tan #1633/2150 (a few mods)
Alpine: CDA-9835, MRV-F540, MRD-M550
PG: TANTRUM-X 6.5 COMP all around.
Some people wear Superman pajamas. Superman wears Chuck Norris pajamas.
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I had alot on the positive, so I had to clean them off. It could also mean I need new batter terminals, because they kinda SUCK. KnuKonceptz, here I come
1999 SE White
AVH-P6500DVD
Infinity Reference 6500CS
Pioneer 5x7s
Punch 360a2
Punch 500a2
Adire Tempest in a custom sealed 3.4cuft box
Modded Xbox
Still need Midnight Cloth Headrests... and if somebody has fold down rear seats....
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Joined: Mar 2001
Posts: 1,279
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When your car is off, is your amp still on? Sounds like a drain somewhere, yet your comment:
The only time I happen to need a jump is when I physically press the "off" button and then remove the keys.
Is very interesting, what happens to the cap when the car does not start? Does it still read 12V? Corrosion can be a HUGE part of the problem, it will show good voltage, but very little current will pass. SO you may hve 14V but very little amperage. this also would explain on bass note voltage dropping from 14.4 to 12.8 instantly. You do not have enough current to keep with the demand.
This is why audio cable is made with Oxygen Free Copper, the guys using "welding" cable will one day have a problem like you describe and wonder why.....
Last edited by KnuKonceptz; 03/17/05 04:17 PM.
Previous Owner of 00 SVT Contour #1077/2150 
95 Contour SE '01 3L 
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Captain Impound Boy
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Captain Impound Boy
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Originally posted by KnuKonceptz:
This is why audio cable is made with Oxygen Free Copper, the guys using "welding" cable will one day have a problem like you describe and wonder why.....
No way! i though it was all the same 
1295strands is the same as 20 i thought lol
also if theres no oxygen how does the wire breathe?
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So new terminals? and does everyone agree that if it was the alternator, that the cap wouldnt read 14.4v?
1999 SE White
AVH-P6500DVD
Infinity Reference 6500CS
Pioneer 5x7s
Punch 360a2
Punch 500a2
Adire Tempest in a custom sealed 3.4cuft box
Modded Xbox
Still need Midnight Cloth Headrests... and if somebody has fold down rear seats....
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Joined: Mar 2001
Posts: 1,279
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I would start with a cleaning, I think baking soda will help clean away corosion. Also if you have a battery charger, put it on the lowest 12V setting (like 1A or less) and let it charge over night. And yes, if you get 14V when running the ALT is most likely just fine.
Previous Owner of 00 SVT Contour #1077/2150
95 Contour SE '01 3L
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Wow, before I went to buy new battery terminals and/or blow wads of money on a new alt, I got my girlfriend to lay in the trunk and found out that the trunk light never goes off, so that is what was draining the battery. I'm stupid. Anyone know where the latch/button/whatever is that turns the trunk light on/off? I just took the light out for now
1999 SE White
AVH-P6500DVD
Infinity Reference 6500CS
Pioneer 5x7s
Punch 360a2
Punch 500a2
Adire Tempest in a custom sealed 3.4cuft box
Modded Xbox
Still need Midnight Cloth Headrests... and if somebody has fold down rear seats....
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Joined: Mar 2005
Posts: 8
Newbie
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Newbie
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I had the same problem with mine when I first got it, took the light out and its all set now. I haven't yet attempted to figure out why it stayed on, but if you figure out, pls let me know.
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