Alternator question during heavy bass hits
Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds / (Old System)

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

CadillacForums.com is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Page 1 of 2 1 2 LastLast
Results 1 to 15 of 17
Like Tree1Likes
Cadillac Seville / Cadillac Eldorado Forum Discussion, Alternator question during heavy bass hits in Past Cadillac Vehicle Discussion; So I have a 1600 Watt system setup on my Eldo. Pounds really hard, but I notice the voltage on ...
  1. #1
    BigPimpinCaddy's Avatar
    BigPimpinCaddy is offline Cadillac Owners Fanatic
    Automobile(s): 96 Eldo ETC, 96 Jaguar XJ6, 97 Jeep Grand Cherokee 5.2L
    Join Date
    Nov 2013
    Location
    Oakland, California
    Posts
    231

    Alternator question during heavy bass hits

    So I have a 1600 Watt system setup on my Eldo.

    Pounds really hard, but I notice the voltage on the readouts will read as low as 11.8 during heavy bass hits.

    Alternator usually puts out 13.4-13.8 volts while driving without music.
    Is there a way to prevent these low of a drops during hard heavy bass hits? Will a capacitor help?

    Or should I just upgrade my alternator -- thanks everyone!
    http://www.dbelectrical.com/p-9464-a...-eldorado.aspx

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    amunderdog is offline Cadillac Owners Connoisseur
    Automobile(s): 1994 SLS x 2 ---- 1993 Eldorado Sport ----- 1994 Deville 4.9
    Join Date
    Feb 2010
    Location
    Sunbright, TN
    Posts
    1,235

    Re: Alternator question during heavy bass hits

    Most say caps are most efficient at draining your wallet not fixing your issue.
    Adding a second battery (Or more) usually helps and has other benefits.
    Many say a high output alt is the only real fix.
    Look at any serious bass head build you will find a battery bank and a high output alt (or several).

  4. #3
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 Ford F150 SuperCab4x4
    Join Date
    Feb 2006
    Location
    MD Eastern Shore - Kent Island
    Age
    74
    Posts
    44,206

    Re: Alternator question during heavy bass hits

    Without music, engine running above idle, your DIC voltage - and voltage measured with a DVM - should show between 14.2 to 14.8 volts.

    Looks like your present alternator is not up to capacity. Electrical connections, deteriorated terminals, marginal battery - lots to check and make right before throwing more parts at it.

    The battery is the reservoir that should supply the amperage necessary to deliver bass punches. The alternator refills the battery. If the alternator is not operating at its best efficiency then neither is the battery.
    carnut likes this.

  5. #4
    BigPimpinCaddy's Avatar
    BigPimpinCaddy is offline Cadillac Owners Fanatic
    Automobile(s): 96 Eldo ETC, 96 Jaguar XJ6, 97 Jeep Grand Cherokee 5.2L
    Join Date
    Nov 2013
    Location
    Oakland, California
    Posts
    231

    Re: Alternator question during heavy bass hits

    Thanks amunderdog, great info.

    Thanks Sub, always with the helpful descriptive information. I guess it's new alternator time. Music off, DIC Voltage got as low as 13.3 idling at a red light. Driving at about 1200-1500 rpms it would be at around 13.4-13.6, Startup it's at 14.1-14.2.

    Paying for a higher amperage alternator wouldn't do much? So should I go with this Ac Delco unit? http://www.rockauto.com/catalog/more...571&cc=1026278

    Terminals have been replaced, battery is not that old (will add electrolytes and bring it up to par), connections check ok.

    Just debating which alternator to get (and visioning what a PITA it will be to get the old one out, lol)

    Or is this cheaper $50 alternator just fine?
    http://www.rockauto.com/catalog/more...350&cc=1026278
    I'm thinking ACDelco though.

  6. #5
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 Ford F150 SuperCab4x4
    Join Date
    Feb 2006
    Location
    MD Eastern Shore - Kent Island
    Age
    74
    Posts
    44,206

    Re: Alternator question during heavy bass hits

    If your original alternator is the 140 amp unit, that big AC Delco is the one you want.

    Your present running voltages look to be about 0.6 to 0.8 volt low.

    If you want to doodle away a half hour with a scotch & water, Google "automotive 12 volt battery charging theory".

  7. #6
    amunderdog is offline Cadillac Owners Connoisseur
    Automobile(s): 1994 SLS x 2 ---- 1993 Eldorado Sport ----- 1994 Deville 4.9
    Join Date
    Feb 2010
    Location
    Sunbright, TN
    Posts
    1,235

    Re: Alternator question during heavy bass hits

    http://www.stevemeadedesigns.com/board/
    http://www.mechman.com/alternators/c...ado/93-02/4-6/
    http://www.dbelectrical.com/p-9464-a...-eldorado.aspx

    You have your amp in the trunk? With wiring pulled to it? 0 gauge at least?
    If yes to the above then I would add a sealed gel battery in the trunk (Sears sells a real nice one I hear) and see if things improve.

  8. #7
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 Ford F150 SuperCab4x4
    Join Date
    Feb 2006
    Location
    MD Eastern Shore - Kent Island
    Age
    74
    Posts
    44,206

    Re: Alternator question during heavy bass hits

    He needs to supply POWER to the battery(s) first. More batteries don't mean squat if you can't keep them charged.

  9. #8
    basscatt's Avatar
    basscatt is offline Cadillac Owners Master
    Automobile(s): 89 Coupe DeVille, 95 Sedan DeVille, 03 SLS, two 02 DHS's
    Join Date
    Feb 2004
    Location
    Minnesota
    Age
    63
    Posts
    9,720

    Re: Alternator question during heavy bass hits

    Quote Originally Posted by BigPimpinCaddy View Post
    Thanks amunderdog, great info.

    Thanks Sub, always with the helpful descriptive information. I guess it's new alternator time. Music off, DIC Voltage got as low as 13.3 idling at a red light. Driving at about 1200-1500 rpms it would be at around 13.4-13.6, Startup it's at 14.1-14.2.

    Paying for a higher amperage alternator wouldn't do much? So should I go with this Ac Delco unit? http://www.rockauto.com/catalog/more...571&cc=1026278

    Terminals have been replaced, battery is not that old (will add electrolytes and bring it up to par), connections check ok.

    Just debating which alternator to get (and visioning what a PITA it will be to get the old one out, lol)

    Or is this cheaper $50 alternator just fine?
    http://www.rockauto.com/catalog/more...350&cc=1026278
    I'm thinking ACDelco though.
    =============================
    Just debating which alternator to get -
    and visioning what a PITA it will be to get the old one out

    you are correct - it is NOT a fun job -

    with that in mind - you do NOT want to replace it very often -
    so I would agree with the new ACDelco unit you listed -

    HOWEVER -

    I can save you some money - over $50 in fact -

    rather than paying rock auto $157 - with shipping -
    amazon sells the same unit for $103 - with free shipping -
    http://www.amazon.com/gp/product/B00...=ATVPDKIKX0DER

    you are welcome -

  10. #9
    BigPimpinCaddy's Avatar
    BigPimpinCaddy is offline Cadillac Owners Fanatic
    Automobile(s): 96 Eldo ETC, 96 Jaguar XJ6, 97 Jeep Grand Cherokee 5.2L
    Join Date
    Nov 2013
    Location
    Oakland, California
    Posts
    231

    Re: Alternator question during heavy bass hits

    Sweet. I'll get right on it, Thanks!

  11. #10
    BigPimpinCaddy's Avatar
    BigPimpinCaddy is offline Cadillac Owners Fanatic
    Automobile(s): 96 Eldo ETC, 96 Jaguar XJ6, 97 Jeep Grand Cherokee 5.2L
    Join Date
    Nov 2013
    Location
    Oakland, California
    Posts
    231

    Re: Alternator question during heavy bass hits

    So, I refilled my battery with electrolites. Stronger 12.1 Volts and holding a good charge.

    I added in a capacitor I had lying around. Voltage went as low as 12.8 in the driveway (I just turned the car on to test it out) SO we'll see how a drive goes.

  12. #11
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
    Automobile(s): Crimson 2001 Seville STS, 1990 Seville (RIP)
    Join Date
    Sep 2010
    Location
    East Boston MA.
    Age
    26
    Posts
    20,963
    Is 12.1 battery or charging voltage?

  13. #12
    BigPimpinCaddy's Avatar
    BigPimpinCaddy is offline Cadillac Owners Fanatic
    Automobile(s): 96 Eldo ETC, 96 Jaguar XJ6, 97 Jeep Grand Cherokee 5.2L
    Join Date
    Nov 2013
    Location
    Oakland, California
    Posts
    231

    Re: Alternator question during heavy bass hits

    Quote Originally Posted by MoistCabbage View Post
    Is 12.1 battery or charging voltage?
    Battery

    Oh god that alternator would be thrown out instantly if it was charging at 12.1 lmao.

  14. #13
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
    Automobile(s): Crimson 2001 Seville STS, 1990 Seville (RIP)
    Join Date
    Sep 2010
    Location
    East Boston MA.
    Age
    26
    Posts
    20,963
    A healthy battery puts out 12.6 volts, 12.0 is dead. 12.1 is at the end of its life.

  15. #14
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
    Automobile(s): 2002.5 F55 STS/65500mi, 2004 Ford F150 SuperCab4x4
    Join Date
    Feb 2006
    Location
    MD Eastern Shore - Kent Island
    Age
    74
    Posts
    44,206

    Re: Alternator question during heavy bass hits

    An alternator/voltage regulator, operating normally above idle, will always put out at least 14 to 14.8 volts.

    Disconnected
    battery, untouched for a half hour .........

  16. #15
    BigPimpinCaddy's Avatar
    BigPimpinCaddy is offline Cadillac Owners Fanatic
    Automobile(s): 96 Eldo ETC, 96 Jaguar XJ6, 97 Jeep Grand Cherokee 5.2L
    Join Date
    Nov 2013
    Location
    Oakland, California
    Posts
    231

    Re: Alternator question during heavy bass hits

    Well, driving today I am deciding to get a better battery and a new alternator.

    No music, headlights on, idling at a traffic light 12.8 volts, 13.0 driving with lights on

    So, any instructions on alternator removal? Maybe both through the bottom and radiator removal way in case I can't through the bottom.

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Bookmarks

Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Read about Lincoln | Buick | Kia Forte Forum
Need products for your Cadillac? Check out your options at the links below:

custom floor mats | Cadillac Chrome and Black Chrome Wheels | window tinting