Question about 2006 Ford Taurus

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Ford Taurus Not Charging

Installed a new alternator and a new battery. Alternator is putting out 16 volts, drops to 12 volts. Battery is being drained of power within 10 to 15 minutes of driving. Checked entire wiring harness back to fuse block, starter and battery.

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Check alternator, could ther be a short some where?

Posted on Feb 24, 2010

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Charging system failed. Why is new alternator output ranging between 11 1/2 and 12 1/2 volts?


11 1/2 to 12 1/2 is not charging . That's less then battery state of charge , Battery stat of charge should be 12.6 volts , when charging with a volt meter you should see 13.1 to 14.1 volt at the battery posts . Is there a battery symbol lit on your instrument cluster ? Is there battery B+ voltage at the wires hooked to the alternator How to Test an Alternator

Feb 18, 2016 | 2001 Kia Spectra

1 Answer

After I get new alternator put in and battery keep on drain like it won't get volt from alternator to battery


With engine running, put a voltmeter across the battery terminals. You should see 13.5 to 16 volts. If not, the alternator is NOT charging the battery. Check for open / missing / blow fuse or fusible link in the wiring harness and tighten any loose connections.

Sep 23, 2015 | Cars & Trucks

1 Answer

I have 2006 ford taurus check charging system and battery light on what's the problem help me please


Battery Light usually means the alternator is not charging correctly and needs to be replaced. Check charging volts, it should at 14 volts or very close to that number. If the number is low below 12 then the alternator needs to be replaced.

Note: A bad alternator can damage the battery & vise versa

Jul 20, 2014 | 2006 Ford Taurus

2 Answers

Battery wont hold a charge


There are few possible reasons why battery is not holding charge.May be its weak battery or there is loose connection between battery to alternator.There are few troubleshooting help links,related directly to these types of problem,with there troubleshooting procedure.--------Click the link below and go through its troubleshooting details to resolve the issue:---Car battery loosing its charge overnight? http://schematicsdiagram.blogspot.com/2011/11/car-battery-loosing-its-charge.html
--------How to troubleshoot car battery?

http://schematicsdiagram.blogspot.com/2011/06/how-to-troubleshoot-car-battery.html

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After replacing Alternator, the battery indicator light Comes ON dash? http://howtobyme.blogspot.com/2011/11/after-replacing-alternatorthe-battery.html
----------1998 Ford F150 pickup Battery Drains overnight due to Alternator? Alternator drains car battery? http://technoanswers.blogspot.in/2012/02/1998-ford-f150-pickup-battery-drains.html---------- 2002 Ford Focus sits over night and battery goes dead? http://technoanswers.blogspot.in/2012/02/2002-ford-focus-sits-over-night-and.html----------- Charging system problem on Chrysler LHS car? http://technoanswers.blogspot.in/2012/02/charging-system-problem-on-chrysler-lhs.html
-----------Toyota Corolla: Battery Drains out? http://howtobyme.blogspot.in/2012/05/toyota-corolla-battery-drains-out.html--------- 1999 Ford Taurus: Battery not holding Charge? http://whoisbyme.blogspot.in/2012/06/1999-ford-taurus-battery-not-holding.html
-------------How to Inspect Car battery? http://repairhelpcenter.blogspot.com/2011/12/how-to-inspect-car-battery.html------------ How to Test Car Battery? http://repairhelpcenter.blogspot.com/2011/12/how-to-test-car-battery.html--------- Car Battery Servicing? http://repairhelpcenter.blogspot.com/2011/12/car-battery-servicing.html--------- How to Replace Car Battery? http://repairhelpcenter.blogspot.com/2011/12/how-to-replace-car-battery.html-------- How to Inspect Car battery Terminals? http://repairhelpcenter.blogspot.com/2011/12/how-to-inspect-car-battery-terminals.html---------- How to clean car Battery terminals? http://repairhelpcenter.blogspot.com/2011/12/how-to-clean-car-battery-terminals.html---------- How to Replace Broken Car Battery Cables? http://repairhelpcenter.blogspot.com/2011/12/how-to-replace-broken-car-battery.html
--------------These details and procedure will help.keep updated for more help.Thanks.

Oct 16, 2012 | 1995 Jeep Grand Cherokee

1 Answer

The new alternator will not charge the new battery on my 98 ford taurus. is there a blown fuse or something else stopping the charge.the car runs until the battery drain .i have tried two different...


I would check fuses and relays first..Check the voltage coming off the alternator on the big red wire,,instead of across the battery..Some cars still use a fusible link..You would no that if you have charging voltage at your alternator but not at the battery..Should be 14.0 volts or close to it..with no load

Sep 21, 2011 | 1998 Ford Taurus

2 Answers

Light on dash reads "check


nancycmixon, When you see this "check your charging system" you need to have the alternator checked. This is the main component for the charging system. A normal alternator will put out 13.6 to 14.6 volts. A few tenths of a volt either way won't mean too much but if they are extremely over or under these values means you have a bad alternator. I believe that your vehicle has a voltage meter in the dashboard and it will usually read in the thirteen to fourteen volts range. As far as your battery losing its charge overnight means that you have another problem and that is you have what is called a parasitic drain. There are a certain amount of parasitic drains already in the car with the radio memory and maybe a clock that constantly displays the time and the antitheft system in the car. These will not drain your battery overnight. You have something else draining your battery that is your problem. Have the alternator checked and mention the battery drain. There is test for this but it is too lengthy to post here. Sorry about that. Good luck with this.

May 13, 2011 | 2005 Ford Taurus

2 Answers

I have a 1998 for taurus and the battery keeps draining. The alternator and battery are both good. I have read on how to dete4rmine if there is a drain on your battery. I have disconnected the positive...


If you unplug the harness from the alternator you may find that the drain will go away.If the rectifier is blown in the alternator the the regulater will not turn off making a 4 amp drain.Replace the rectifier or put on a new alternator.

Oct 31, 2009 | 1996 Ford Contour

1 Answer

My 2000 ford ranger and something draining battery


bad alternator possible or bad battery..even though its new that battery can be bad. I would take a volt meter and with the engine running check the volts of the battery..If the volts are 12 you need to replace alternator, if volts are 14 you need to check the battery. to check the battery hold the volt meter to the battery and have someone start the car..while the starter is cranking battery volts should not drop below 10volts.if they do your battery is bad.

Jun 11, 2009 | 2000 Ford Ranger SuperCab

2 Answers

Taurus not charging.brand new alternator.battery light not on.a diagram would be helpful.


It's possible the main fuse is blown. Have the battery fully charged and start the engine. With a digital volt meter, check to see if you have 12 volts going to your alternator (the large wire on your alternator) If not, the main fuse is most likely blown. The main fuse links your battery positive cable to the alternator 12 volt supply cable. It is probably mounted on your fuse box but probably won't be listed in your fuse box layout. Unbolt the battery and alt wires going to the fuse and check for continuity, ohms should be 0 or close to it. So now that you spent about $300 on a new battery and alternator, you find out it was a $5.00 fuse!

Apr 28, 2009 | Ford Taurus Cars & Trucks

3 Answers

My car will not start. we just put a new battery in yesterdayand it worked fine all day . this morning it started up no problem but when we went to start it again it would not and we did not even move the...


Need to recharge the battery,fully,start the car,and check the charging voltage at the battery with a voltmeter, to verify that the alternator is charging the battery properly.If the alternator isn't working (charging) then the battery will go dead again.Charging voltage at the battery with the engine running should be minimum 13.5 volts up to about 14.5 volts.Battery voltage with the engine off should be minimum 12.5 volts.

Jul 15, 2008 | 1996 Ford Taurus

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