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Newbie Forum: Beginner/newbie/general DSM modification questions. First mods, how to run 10's when you haven't run 12's yet, any tech question that doesn't fit in another tech forum. Probationary Members must limit their tech posts to this forum and sub-forums.

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Old 12-22-2008, 02:46 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #1 (permalink)
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car loses all electrical power while driving


i just replaced the alternator, can it be my battery
my brake , radiator, and battery lights flicker on and off, the car starts up fine but when i drive it it loses all electrical power within five minutes of driving


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Old 12-22-2008, 02:51 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #2 (permalink)
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Quote:
Originally Posted by theboss88 View Post
i just replaced the alternator, can it be my battery
my brake , radiator, and battery lights flicker on and off, the car starts up fine but when i drive it it loses all electrical power within five minutes of driving
Is your belt properly tightened on the Alt?
Yes, this sounds like your battery.
Just go to Dangerzone and get it tested.


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Old 12-22-2008, 02:55 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #3 (permalink)
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yea well i replaced the alternator cause it just started doing the same thing
when i rebuilt the motor the car sat for a 2 weeks and the battery was completly dead
i had them test the old alternator and it was only putting out 12 volts
so i think the battery is shot
anyone have anything like this happen to them before

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Old 12-22-2008, 03:49 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #4 (permalink)
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Quote:
Originally Posted by theboss88 View Post
yea well i replaced the alternator cause it just started doing the same thing
when i rebuilt the motor the car sat for a 2 weeks and the battery was completly dead
i had them test the old alternator and it was only putting out 12 volts
so i think the battery is shot
anyone have anything like this happen to them before
Yeppers. Had my battery disconnected for about 3 weeks once while putting my car back together. I put it together hooked the battery up and had to jump the car to get it to start. Afterwards I was driving to a buddys house and the same exact thing happened to me. Replaced my alternator(free bec of the Auto Zone warranty ) and had them do a quick charge on my battery. Good as new now


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Old 12-22-2008, 04:50 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #5 (permalink)
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I had this happen to me one time...I was driving...then out of no where my power cut out...i tried everything...it ended up being a 40 amp engine fuse...might wanna check just in case

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Old 12-22-2008, 05:18 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #6 (permalink)
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i put a new battery in it and it did nothin
i just bought the alt. at autozone 2 days ago
the belt is new aswell
my radiator brake and battery light all come on at the same time and the go on and off
it seems like the car is running of the battery
or there is a drain

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Old 12-22-2008, 05:25 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #7 (permalink)
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Check your alt. fuse and see if it needs to be replaced.

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Old 12-22-2008, 05:38 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #8 (permalink)
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how can you tell if its bad????
i never pulled it out but from the top it looks ok

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Old 12-22-2008, 06:05 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #9 (permalink)
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check your wires that go to the alternator
becasue if there loose everything you are saying will happen
my car did the same

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Old 12-22-2008, 06:09 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #10 (permalink)
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maybe the wires are just bad?
i tightened everything down

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Old 12-22-2008, 06:18 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #11 (permalink)
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Quote:
Originally Posted by theboss88 View Post
maybe the wires are just bad?
i tightened everything down
when you pulled your alternator choke did you un screw a bolt to take it out

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Old 12-22-2008, 06:22 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #12 (permalink)
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Make sure the the power steering pump bracket is tightened all the way. I experienced the same symptoms and it ended up being because the power steering pump was loose and was hitting the alternator, causing the car to lose all power. Just another idea of what it could be.

EDIT: Did you take it down the road after you tightened everything down, to see if it is still losing power? From your posts it really seems like it's grounding out somewhere.


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Last edited by Defiant; 12-23-2008 at 06:22 AM. Reason: oo
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Old 12-22-2008, 06:30 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #13 (permalink)
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yea i drove it it just seems like all power is being drained somewhere

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Old 12-22-2008, 10:31 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #14 (permalink)
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Get your "new" alt. tested and most likely, replaced.


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Old 12-23-2008, 06:23 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #15 (permalink)
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Make sure the battery + terminal isn't grounding to the hood or strut bar. Bolt it down, and use a cover over the + teminal.
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Old 12-23-2008, 09:49 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #16 (permalink)
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Quote:
Originally Posted by PieEyedPiper View Post
Get your "new" alt. tested and most likely, replaced.
I agree I would also take back the battery and get it tested. Ive bought batteries from Auto Zone before brought them home and they didnt work. I take them back and have them check and go figure its a bad battery. I havent had trouble with any of my Auto Zone alternators though. Mine hold 14.3-14.5 volts cruising and 14.1 at idle


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Old 12-23-2008, 11:04 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #17 (permalink)
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Make sure your battery terminals are clean. Use some baking soda and water on the terminals to clean them off. Replace the cable's end if needed to make a good connection. Make sure your ground cable going down to the transmission bolt is tight and clean. Cleanliness and solid connections are the key to success.

I had the same problem. The battery terminals looked great all together. Then, I took off the terminal and it was all corroded. So, I cleaned it up and put it back together and I had no more problems.

Also, feel the terminals if they are warm or hot to the touch then it's having a hard time getting current through that terminal and that's where your problem lies.

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