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    aaron7114's Avatar
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    voltage problem...please help

    Today I was kinda bored so I decided to test the voltage in my car. I got my DMM and popped my trunk put the DMM leads on my kinetik 2400 and started my car.....the DMM read 12 somethin then gradually movied up to 13.1...then it dropped just a little bit I think bc my car idled down after it was runnin for a little bit. Then I played just a 47 hz tone on a pretty low level and the voltage was stayin steady at 12.70.

    I turned the bass off and the voltage charged back up a tad....but not even back up to 13 volts, 12.90 i believe. Then I turned my car off and the voltage quickly started dropping. After about 5 minutes of the car being off the voltage read 12.3. I popped my hood and checked to see what the voltage read with the battery under the hood and it was the same.

    I have done the big 3 in 0 guage and have am running all 0 guage for batts and amps.

    Any help?



    Headunit:
    JVC AVX2 (3.5" Screen)
    Mids and Highs:
    Kicker 6 1/2" door speakers
    Four 3 1/2" Kicker Speakers in the sub wall
    Subs:
    Two 2006 15" Kicker L7s
    Amps:
    Kicker KX120.2 for Mids and Highs
    Kicker KX2500.1 for Subs
    Box:
    8 Cube wall tuned to 50 hz for comp and 36 hz for daily.
    150.4 db @ 47 hz on TL with 3 day old subs. Done a 156.8 since then on Audiocontrol
    Refs: 1 Hugh Jass, k4rts, vitveet, pioneerpimp, Colt9699, caligirl2k




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    Re: voltage problem...please help

    Should my voltage be running around 14.5 volts with the car running? Also the voltage shouldn't drop that fast and that low after I shut the car off should it?



    Headunit:
    JVC AVX2 (3.5" Screen)
    Mids and Highs:
    Kicker 6 1/2" door speakers
    Four 3 1/2" Kicker Speakers in the sub wall
    Subs:
    Two 2006 15" Kicker L7s
    Amps:
    Kicker KX120.2 for Mids and Highs
    Kicker KX2500.1 for Subs
    Box:
    8 Cube wall tuned to 50 hz for comp and 36 hz for daily.
    150.4 db @ 47 hz on TL with 3 day old subs. Done a 156.8 since then on Audiocontrol
    Refs: 1 Hugh Jass, k4rts, vitveet, pioneerpimp, Colt9699, caligirl2k

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    Qbenjamin's Avatar
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    Re: voltage problem...please help

    My voltage will read about 14.2 when running also. When everything in my car shuts down, the voltage drops to about 12.4. I would consider that normal. You will see the voltage jump all over the place, depending on what you are doing to the car. In example, close all your doors, and test the voltage, then hit your alarm and watch the voltage jump around a bit. What you have is normal.




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    Re: voltage problem...please help

    Quote Originally Posted by Qbenjamin View Post
    My voltage will read about 14.2 when running also. When everything in my car shuts down, the voltage drops to about 12.4. I would consider that normal. You will see the voltage jump all over the place, depending on what you are doing to the car. In example, close all your doors, and test the voltage, then hit your alarm and watch the voltage jump around a bit. What you have is normal.
    What I dont understand is why my car does not run 14+ volts with it running....and no music or anything playing. Like alot of times when I turn my car on im running in the 12s....There is very seldom any day that my car will be running 14 volts.

    Also I thought a kinetik held a charge longer than a regular battery....but like I said as soon as i shut the car off it immediately started dropping fast.



    Headunit:
    JVC AVX2 (3.5" Screen)
    Mids and Highs:
    Kicker 6 1/2" door speakers
    Four 3 1/2" Kicker Speakers in the sub wall
    Subs:
    Two 2006 15" Kicker L7s
    Amps:
    Kicker KX120.2 for Mids and Highs
    Kicker KX2500.1 for Subs
    Box:
    8 Cube wall tuned to 50 hz for comp and 36 hz for daily.
    150.4 db @ 47 hz on TL with 3 day old subs. Done a 156.8 since then on Audiocontrol
    Refs: 1 Hugh Jass, k4rts, vitveet, pioneerpimp, Colt9699, caligirl2k

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    Re: voltage problem...please help

    Sounds like your alternator is on its way out. How many miles have you logged on this alternator. If you have had it for a bunch of years, it's time to go for something new. While you are at it, get a high output one. That 2500.1 is sucking a lot of power .




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    Re: voltage problem...please help

    Quote Originally Posted by csnut18 View Post
    Sounds like your alternator is on its way out. How many miles have you logged on this alternator. If you have had it for a bunch of years, it's time to go for something new. While you are at it, get a high output one. That 2500.1 is sucking a lot of power .
    I have had this alternator for probably a year. Luckily I have a lifetime warranty on it.



    Headunit:
    JVC AVX2 (3.5" Screen)
    Mids and Highs:
    Kicker 6 1/2" door speakers
    Four 3 1/2" Kicker Speakers in the sub wall
    Subs:
    Two 2006 15" Kicker L7s
    Amps:
    Kicker KX120.2 for Mids and Highs
    Kicker KX2500.1 for Subs
    Box:
    8 Cube wall tuned to 50 hz for comp and 36 hz for daily.
    150.4 db @ 47 hz on TL with 3 day old subs. Done a 156.8 since then on Audiocontrol
    Refs: 1 Hugh Jass, k4rts, vitveet, pioneerpimp, Colt9699, caligirl2k

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    Re: voltage problem...please help

    My voltage is 13.8 steady with the car running and 12.6 with car off. This is with a yellowtop under hood and the big 3 in 2/0. I expect to be sitting at 14+ with a new HO alt. I think what you're experiencing is normal for not having a strong Alt.



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    Re: voltage problem...please help

    Um, I don't think that is normal with any alternator when he has nothing running. I have a 2006 acura rsx type s with the stock alternator with a bunch of stuff in it and that voltage does drop with ac on full blast and the music going but when I turn everything off and the car is running I am always at 14.4 to 14.5 volts. That is what your car should be at with all acc off.




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    Re: voltage problem...please help

    Quote Originally Posted by csnut18 View Post
    Um, I don't think that is normal with any alternator when he has nothing running. I have a 2006 acura rsx type s with the stock alternator with a bunch of stuff in it and that voltage does drop with ac on full blast and the music going but when I turn everything off and the car is running I am always at 14.4 to 14.5 volts. That is what your car should be at with all acc off.
    Thats what I think too. I dont have my air, lights or anything on.



    Headunit:
    JVC AVX2 (3.5" Screen)
    Mids and Highs:
    Kicker 6 1/2" door speakers
    Four 3 1/2" Kicker Speakers in the sub wall
    Subs:
    Two 2006 15" Kicker L7s
    Amps:
    Kicker KX120.2 for Mids and Highs
    Kicker KX2500.1 for Subs
    Box:
    8 Cube wall tuned to 50 hz for comp and 36 hz for daily.
    150.4 db @ 47 hz on TL with 3 day old subs. Done a 156.8 since then on Audiocontrol
    Refs: 1 Hugh Jass, k4rts, vitveet, pioneerpimp, Colt9699, caligirl2k

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    aaron7114's Avatar
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    Re: voltage problem...please help

    If I took my car to o'rieleys would they be able to see if anything is wrong with my alt? I mean I know they have a tester thing for alts but would it bc checking the right thing?



    Headunit:
    JVC AVX2 (3.5" Screen)
    Mids and Highs:
    Kicker 6 1/2" door speakers
    Four 3 1/2" Kicker Speakers in the sub wall
    Subs:
    Two 2006 15" Kicker L7s
    Amps:
    Kicker KX120.2 for Mids and Highs
    Kicker KX2500.1 for Subs
    Box:
    8 Cube wall tuned to 50 hz for comp and 36 hz for daily.
    150.4 db @ 47 hz on TL with 3 day old subs. Done a 156.8 since then on Audiocontrol
    Refs: 1 Hugh Jass, k4rts, vitveet, pioneerpimp, Colt9699, caligirl2k

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