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ALTERNATOR GOES BAD AND BATTERY AFTER INSTALLATION THE IS DRAINED BOTH NEW ALTERNATOR GOES BAD DRIVING ONLY A FEW BLOCKS AT NIGHT THIS IS MY THIRD ALTERNATOR iM REPLACING AND BATTERY CHARGED UP DONT

MY ALTERNATORS HAD RUN A DIAGNOSTIC CHECK AND PASSED BEFORE INSTALL AND BATTERY FULLY CHARGED DRIVING AROUND A FEW BLOCKS BATTERY DOSENT GET CHARGED AND THE ALTERNATOR GOES BAD WHEN ENGINGE RUNNING AND TAKING A TEST DRIVE SOMETHING THAT USES ALOT OF POWER IS DRAINING THE BATTERY THERE IS A SHORT THAT USES ALOT OF CURRENT i FOLLOWED THE ALTERNATOR WIRES ALL THE FUSES IN FUSE BOX CHECKED ALL THE SENSOR CONNECTIONS IF ITS SOMETHING SIMPLE CAN YOU HELP ME PLEASE

Posted by Rocky Davalos on

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Marvin

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  • Cars & Trucks Master
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After the 2nd new part I would have suspected a wiring propbem.

Posted on Mar 12, 2013

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Anonymous

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SOURCE: Ford Taurus Not Charging

check alternator, could ther be a short some where?

Posted on Feb 24, 2010

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Can a bad alternator cause a battery to die overnight?


A bad alternator no longer charges the battery, the battery will die once it is drained. This will occur more rapidly when using equipment that runs off of the battery( lights, heater blower, windshield wipers etc.) even electronic ignition will run down a battery. Your battery just went over night the alternator may have stopped working long before. Go to an auto parts store that offers free testing to make sure it is your alternator before making repairs.
Good luck.

Apr 20, 2015 | 2003 Chevrolet TrailBlazer

1 Answer

2006 liberty new battery alternator works when sets over night battery goes dead put a kill switch on and still goes dead ?


put kill where? at battery post, and is just a switch,
not those dynamic battery drop relays?
if the battery goes dead with the neg. lug pulled the battery is bad.
end of life , battery.
the lug pull never lies.... ever.
if stays ok now this is called battery phantom drain.
(or aka. dark currents)

finding cause takes an ammeter. any,
here is all ways to find a drain.

http://www.fixkick.com/drain/drain.html

Mar 03, 2015 | 2006 Jeep Liberty

2 Answers

Jeep wont charge


wow no year stated, nor car. a willis jeep> 1945?
in 1945 it has no Alternator !
General answer , for all cars:
dead parked, or dead moving ?
no person can help lacking that critical fact,
sounds to me like, impossible question !
if it goes dead moving the alternator /gen system is failing.
if the battery goes dead parked, that means you have phantom drain.

we can find out which it is , with a $10 DMM meter at walmart
$20 is a better buy.

so if it drains over night check for lamps stuck on.(aka. dark current)
if drain driving, then.
check for 13.3 to 15vdc, running, engine.
if low, the alternator system (charge) is failing
at no time did i say any part was bad or to buy them. (i never do until i do tests)
drains here.
http://www.fixkick.com/drain/drain.html
works on all cars.

moving dead.:
there are other rare causes..
like the engine will not idle at 800 rpm or more.
see this, the alternator goes off line below that much.
and can drain a battery fast deep in the city at infinite red lights
and traffic jams.
that is why getting a car with hands on service by a real ASE
tech, works best , he /she sees all this in 5 min flat.
saving all this grief.
like , oh crud, it idles a 500! (that be it)
or charge lamp is on?

the old jeeps love to kill batteries, with old DC generators. (ask)
oh my, the OBD2 scan tool says my ALternator is off line.
or other DTC errors, about power lost to many places.
use a scan tool if car is newer.


this car?
http://barrettjackson.com/staging/carlist/items/Fullsize/Cars/96748/96748_Rear_3-4_Web.JPG

sad the owner can't tell year or model.

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2 Answers

Why does my 96 Cadillac Eldorado battery keep discharging?


First step have the battery tested, a bad cell can cause a internal drain and kill the battery, if the batt is ok then check for interior lights like visors that stay on or interior light that come on by themselves at night due to defective door switches.

Dec 27, 2012 | Cars & Trucks

1 Answer

Battery draining over night bonneville 95


a short will blow a fuse what you have is something stating on most common is a bad power antenna but remove the neg cable and place a test light between the battery and the neg cable remove fuses till the light goes dim the removed fuse that allows the light to go dime is the draw on the battery also a bad diode in the alternator will drain it as well so unplug and unbolt that as well

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1 Answer

Brand new battery. If I do not drive it for one day the car goes completely dead. No power what so ever. No lights, will not turn over... no anything. Is it the alternator as the voltage regulator is...


If it was an alternator related problem the car would die while it was running. it could still be a bad battery. i have gotten a few new batteries that were bad.

try this:
-drive the car for about 15 mins to make sure the battery has a good charge
-after you park it, then disconnect the (-) neg cable from the battery
-let the car sit over night with the battery disconnected
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if the battery is good, it will start normally
if its bad you'll get the -no start- problem

If the battery is good, you have a parasitic drain some where in you electrical system.

Jan 21, 2011 | 2002 Ford Mustang

1 Answer

Ford Taurus Not Charging


check alternator, could ther be a short some where?

Feb 24, 2010 | 2006 Ford Taurus

1 Answer

1989 chevrolet 1500 series/stop running at 60-70mph on freeway


Sounds like the alternator is bad. You can have it checked for free at the auto parts store....FREE....free is always good!

Have the alternator checked....it sounds like it is bad.

Apr 02, 2009 | 1995 Chevrolet S-10 CA Edition

2 Answers

Battery keeps dying in the middle of the night


have the alternator checked it could test good and still be bad but it can also drain the battery 9 times out of 10 its the alternator thats draining the battery

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