Closed Thread
Page 1 of 2 1 2 LastLast
Results 1 to 15 of 18

Reload Thread: Car Voltage help!

  1. #1
    Join Date
    Jul 2012
    Location
    52641
    Posts
    74
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    34 Post(s)

    Car Voltage help!

    Ok I replaced my head unit to a sony explode, added a sealed battery, and ran 4 awg power wire from the front to the beck and a foot long 4 awg ground for the second. I still have te problem of my amp going into protection mode. I bought a volt metter and my car off it reads around 12.30ish car on it reads 14.50ish (both batterys read the same). Now when the car is reved it jumps to 17+ volts.. my alt is a 75 amp 50% duty alternator I know I need a 100% duty one but is there anything else I could do? right now I have to run my lights and heater and over 25 mph it does to many volt and it shuts off my amp AND head unit...







  2. #2
    mylows10's Avatar
    mylows10 is online now Dc,tantric,singer,phd rep mylows10 is a Supporting Member of the forum!

    mylows10 is a Supporting Vendor of the forum!

    Join Date
    Sep 2009
    Location
    monterey , ca
    Age
    51
    Posts
    19,426
    Post Thanks / Like
    Images
    9
    Mentioned
    7 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    5112 Post(s)

    Re: Car Voltage help!

    re[place the alt ,or see if you can get a external voltage reg for it




    pioneer avhx 5500 dvd, gzpa 1.4000 x 2
    ab vfl 350.4 ,7 pc 2150 and a 150 ah power ware agm ,275 amp singer alt , 2nd one coming soon
    cdt 6.5 es 6 mids,cdt es 010 tweets,es 03 Mids ,mx1000 3 way x overs , sky high and stinger hpm o gauge wires ,also 2 tantric hdd 15's in a 9.5. ^3 ported no wall box 11.5 octo port.
    NOR CAL DB DRAG JUDGE
    http://www.dcsoundlab.com

  3. #3
    PlymouthScamp71's Avatar
    PlymouthScamp71 is offline Member

    Threadstarter


    Join Date
    Jul 2012
    Location
    52641
    Posts
    74
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    34 Post(s)

    Re: Car Voltage help!

    Quote Originally Posted by mylows10 View Post
    re[place the alt ,or see if you can get a external voltage reg for it
    Can you give me a more general perspective of what kind of external volt reg I'll need?




  4. #4
    mylows10's Avatar
    mylows10 is online now Dc,tantric,singer,phd rep mylows10 is a Supporting Member of the forum!

    mylows10 is a Supporting Vendor of the forum!

    Join Date
    Sep 2009
    Location
    monterey , ca
    Age
    51
    Posts
    19,426
    Post Thanks / Like
    Images
    9
    Mentioned
    7 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    5112 Post(s)

    Re: Car Voltage help!

    Quote Originally Posted by PlymouthScamp71 View Post
    Can you give me a more general perspective of what kind of external volt reg I'll need?
    well you need to find out if your alt can use an external reg or not .the alt maybe bad if its a 12 volt alt tho .,but more than likely its a 16 volt alt.




    pioneer avhx 5500 dvd, gzpa 1.4000 x 2
    ab vfl 350.4 ,7 pc 2150 and a 150 ah power ware agm ,275 amp singer alt , 2nd one coming soon
    cdt 6.5 es 6 mids,cdt es 010 tweets,es 03 Mids ,mx1000 3 way x overs , sky high and stinger hpm o gauge wires ,also 2 tantric hdd 15's in a 9.5. ^3 ported no wall box 11.5 octo port.
    NOR CAL DB DRAG JUDGE
    http://www.dcsoundlab.com

  5. #5
    PlymouthScamp71's Avatar
    PlymouthScamp71 is offline Member

    Threadstarter


    Join Date
    Jul 2012
    Location
    52641
    Posts
    74
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    34 Post(s)

    Re: Car Voltage help!

    what would a 16 volt alt read? I just replaced it this fall so I know its not that. and I checked my car and it has an external volt regulator on the firewall but my cars 42 years old and the regulator looks in bad shape.




  6. #6
    Phoenix Risen's Avatar
    Phoenix Risen is offline OG.... Original Ginger



    Join Date
    Jun 2010
    Location
    Dayton/Springfield, Ohio
    Posts
    4,064
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    350 Post(s)

    Re: Car Voltage help!

    it could be an issue with the regulator, you shouldnt have that big of a spike when you start driving, what kind of car is it?



    R.I.P. 2008 Hyundai Tiburon GS
    2005 Subaru Baja turbo, build in planing stages.

  7. #7
    PlymouthScamp71's Avatar
    PlymouthScamp71 is offline Member

    Threadstarter


    Join Date
    Jul 2012
    Location
    52641
    Posts
    74
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    34 Post(s)

    Re: Car Voltage help!

    Quote Originally Posted by Phoenix Risen View Post
    it could be an issue with the regulator, you shouldnt have that big of a spike when you start driving, what kind of car is it?
    I have a 1971 Plymouth Scamp. Its the Chrysler A body the same Body style used for the Dodge dart.




  8. #8
    Phoenix Risen's Avatar
    Phoenix Risen is offline OG.... Original Ginger



    Join Date
    Jun 2010
    Location
    Dayton/Springfield, Ohio
    Posts
    4,064
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    350 Post(s)

    Re: Car Voltage help!

    ok, especially with the age of it it could very well be that regulator. or if thats just how that car is supposed to work you could look into a voltage stepdown and run the audio off of that.



    R.I.P. 2008 Hyundai Tiburon GS
    2005 Subaru Baja turbo, build in planing stages.

  9. #9
    bgowdy31's Avatar
    bgowdy31 is online now I GOT LOUD FOR $430.23



    Join Date
    Apr 2011
    Location
    Campbellsville, Ky
    Posts
    6,634
    Post Thanks / Like
    Images
    82
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    1970 Post(s)

    Re: Car Voltage help!

    ****.... when you drive it goes to 17+volts? wouldnt that blow all of the cars accessories and what not?



    2001 HYUNDAI SANTA FE -
    1 DC AUDIO XL-18 M1 DUAL 1 ~ 5 CUBES NET ~ 1-8" AERO ~ TUNED 39HZ
    SHARK 2500D @ .5 OHM DAILY ~ STOCK ALT ~ 1 STOCK DEKA & 2 AGM'S ~ BULLZ AUDIO 1/0

    145.8DB LEGAL SEALED ON DASH

    ~2010 FCBC 450 STREET DIVISION 3RD OVERALL~
    ~2011 FCBC 450 STREET DIVISION CHAMPION~
    ~YOUTUBE->bgowdy31 & bgowdy3131~
    *BEST SCORE ~ 95 BLAZER 147+DB 30-SEC MUSIC-BB2400 & 1 HDC3-18 W/STOCK ELECTRICAL*

    R.I.P. TO MY WIFEYS 03 FOCUS SE TRUNK SYSTEM ~ 143+DB 30 SEC MUSIC AVG

  10. #10
    WhyUmad's Avatar
    WhyUmad is offline Member



    Join Date
    Apr 2011
    Location
    FL
    Posts
    128
    Post Thanks / Like
    Images
    1
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    11 Post(s)

    Re: Car Voltage help!

    Alternator is bad, needs to be replaced or repaired. The voltage regulator is blown it should never go higher than 14.x voltage. Fix it before it damages more electrical parts




  11. #11
    Phoenix Risen's Avatar
    Phoenix Risen is offline OG.... Original Ginger



    Join Date
    Jun 2010
    Location
    Dayton/Springfield, Ohio
    Posts
    4,064
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    350 Post(s)

    Re: Car Voltage help!

    Quote Originally Posted by bgowdy31 View Post
    ****.... when you drive it goes to 17+volts? wouldnt that blow all of the cars accessories and what not?
    its a 71 it doesnt have accessories...



    R.I.P. 2008 Hyundai Tiburon GS
    2005 Subaru Baja turbo, build in planing stages.

  12. Likes NASTY08IMPALA liked this post
  13. #12
    bgowdy31's Avatar
    bgowdy31 is online now I GOT LOUD FOR $430.23



    Join Date
    Apr 2011
    Location
    Campbellsville, Ky
    Posts
    6,634
    Post Thanks / Like
    Images
    82
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    1970 Post(s)

    Re: Car Voltage help!

    Quote Originally Posted by Phoenix Risen View Post
    its a 71 it doesnt have accessories...
    i was meaning like lights and stuff like that



    2001 HYUNDAI SANTA FE -
    1 DC AUDIO XL-18 M1 DUAL 1 ~ 5 CUBES NET ~ 1-8" AERO ~ TUNED 39HZ
    SHARK 2500D @ .5 OHM DAILY ~ STOCK ALT ~ 1 STOCK DEKA & 2 AGM'S ~ BULLZ AUDIO 1/0

    145.8DB LEGAL SEALED ON DASH

    ~2010 FCBC 450 STREET DIVISION 3RD OVERALL~
    ~2011 FCBC 450 STREET DIVISION CHAMPION~
    ~YOUTUBE->bgowdy31 & bgowdy3131~
    *BEST SCORE ~ 95 BLAZER 147+DB 30-SEC MUSIC-BB2400 & 1 HDC3-18 W/STOCK ELECTRICAL*

    R.I.P. TO MY WIFEYS 03 FOCUS SE TRUNK SYSTEM ~ 143+DB 30 SEC MUSIC AVG

  14. #13
    Phoenix Risen's Avatar
    Phoenix Risen is offline OG.... Original Ginger



    Join Date
    Jun 2010
    Location
    Dayton/Springfield, Ohio
    Posts
    4,064
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    350 Post(s)

    Re: Car Voltage help!

    Quote Originally Posted by bgowdy31 View Post
    i was meaning like lights and stuff like that
    i know, i was just being an a$$, but lights are typically pretty forgiving with stuff like that.



    R.I.P. 2008 Hyundai Tiburon GS
    2005 Subaru Baja turbo, build in planing stages.

  15. #14
    bgowdy31's Avatar
    bgowdy31 is online now I GOT LOUD FOR $430.23



    Join Date
    Apr 2011
    Location
    Campbellsville, Ky
    Posts
    6,634
    Post Thanks / Like
    Images
    82
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    1970 Post(s)

    Re: Car Voltage help!

    Quote Originally Posted by Phoenix Risen View Post
    i know, i was just being an a$$, but lights are typically pretty forgiving with stuff like that.
    sh1t.... i was charging my truck and wasnt paying attention to the setting turned on the charger to like 16.5v and shot the light under my hood lol....



    2001 HYUNDAI SANTA FE -
    1 DC AUDIO XL-18 M1 DUAL 1 ~ 5 CUBES NET ~ 1-8" AERO ~ TUNED 39HZ
    SHARK 2500D @ .5 OHM DAILY ~ STOCK ALT ~ 1 STOCK DEKA & 2 AGM'S ~ BULLZ AUDIO 1/0

    145.8DB LEGAL SEALED ON DASH

    ~2010 FCBC 450 STREET DIVISION 3RD OVERALL~
    ~2011 FCBC 450 STREET DIVISION CHAMPION~
    ~YOUTUBE->bgowdy31 & bgowdy3131~
    *BEST SCORE ~ 95 BLAZER 147+DB 30-SEC MUSIC-BB2400 & 1 HDC3-18 W/STOCK ELECTRICAL*

    R.I.P. TO MY WIFEYS 03 FOCUS SE TRUNK SYSTEM ~ 143+DB 30 SEC MUSIC AVG

  16. #15
    Phoenix Risen's Avatar
    Phoenix Risen is offline OG.... Original Ginger



    Join Date
    Jun 2010
    Location
    Dayton/Springfield, Ohio
    Posts
    4,064
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    350 Post(s)

    Re: Car Voltage help!

    ****, depends on the light i guess.



    R.I.P. 2008 Hyundai Tiburon GS
    2005 Subaru Baja turbo, build in planing stages.

Closed Thread
Page 1 of 2 1 2 LastLast

Similar Threads

  1. New to car audio. help me out and I will buy you a beer
    By justice in forum Wiring, Electrical and Installation Help
    Replies: 11
    Last Post: 02-20-2003, 04:14 AM
  2. New Car-need Help
    By noooobie in forum General Discussion
    Replies: 5
    Last Post: 01-03-2003, 11:39 PM
  3. Installing Car Speakers..HELP!
    By Bia in forum Wiring, Electrical and Installation Help
    Replies: 3
    Last Post: 11-18-2002, 11:15 PM
  4. I need some answers on Car Audio Help!
    By rouskisman in forum General Discussion
    Replies: 3
    Last Post: 05-27-2002, 11:01 PM
  5. car alarm help
    By Unregistered in forum Wiring, Electrical and Installation Help
    Replies: 4
    Last Post: 02-28-2002, 06:38 PM

User Tag List

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may post replies
  • You may post attachments
  • You may edit your posts
1e2 Forum