what is causing battery to not hold charge when battery, alternator, and starter are good?


Asked by May 28, 2013 at 12:01 AM about the 1996 Ford Taurus GL

Question type: Maintenance & Repair

Hi i am having trouble 96 Ford Taurus. The battery
died on me , so i checked alternator and it was
fried.I changed it and put battery back on. It died
again. Three alternators later we were still fighting
the same battle. We have determined that the
battery drains and then dies when the headlights
are on. We believe it is grounding somewhere but
cant figure it out. Any suggestions or alternative
solutions would be great. Battery, starter, fuses,
and alternator all good

12 Answers

the glovebox light or engine or courtesy hatch light are on....check at night...http://www.youtube.com/watch?v=KF1gijj03_0

5 of 5 people found this helpful.

The battery is dying about 30 minutes into my drive. It is ok when it first starts going. It last less time if headlights are on.

10 of 10 people found this helpful.

...yes your alternator renounced all responsibility toward juicing your battery and system...perhaps your battery is old....5 years and should be replaced...also the alternator output is not sufficient....should be 14.5 to 15.5 volts please~ turn it in for a rebuilt one from NAPA~...and get a new battery~~~{the judge #4}

1 of 1 people found this helpful.

...if you've been a good little owner, the battery will be new-ish and the connections to the battery are simply corroded and need to be hosed off and wirebrushed clean....all connections...black to frame to engine all should be able to pull at least 300CCA without catchin' fire---and be free of corrosion...especially the little red lolipop connector at the battery which is return from the alternator....this one should be made clean...and perhaps you may escape having to replace these things...for a while~ {the judge #4}

eric the car guy takes you through the seven planes of hell to which if you had been observant may have spotted the electrical drain as a switch left on...etc~.....do avoid all that~

9 of 9 people found this helpful.

the new Tin/Antimony Alloy (no LEAD) anymore will only last about 10 years before they will stop accepting a charge *from a 35 year Electrochemical Engineer (me pops)~ 10 percent per year they will stop listening to what the alternator has to say~...until the damned alternator overheats and the battery is still dead~

1 of 1 people found this helpful.

Check the ground wires on the firewall front and driver side. Make sure the #26 fuze is okay.


which fuse will stop it from charging from my alternator to my battery

23 of 23 people found this helpful.

alternator not charging battery alternator good

9 of 9 people found this helpful.

I can tell you by experience it is not the battery or thw alternator it is a very simple fix that will surprise you..our 96 taurus did the same bought $97 battery the whole bit n it just kept "killing" it..so my extremely smart mechanic cleaned and changed out the negative and positive connections to the battery and walla problem solved ..it is very common with the taurus so please take time out to check your connections before wasting tons of money as i did..

4 of 4 people found this helpful.

i know this a year after the last answer. but i am have the same exact issue with my 05 taurus and models later but does any one know for sure what causes the alternator to work as it should but not charge the battery. the battery can last up to 30 minutes with out head lights as well, i got a new battery as it was the first issue with a bad cell. we checked the alternator and it work great. an before it dies the charging system sign go off. one by one a dash light turn on then of til the my message board and all cluster lights turn off, the only difference is when the battery is fully charged as long as i give it enough gas ove 2,5-3ooo rpms. then the battery light turns off. but inevitability it dies in the end

3 of 3 people found this helpful.

I have a 99 Ford Taurus 3.0 v6 I have a draining problem with my car I can start it today by tomorrow morning it be dead again can you tell me what can be causing my car to drain like that please

1 of 1 people found this helpful.

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