Dead Battery (every day)

Asked by Oct 25, 2007 at 08:05 PM about the 2002 Ford Mustang

Question type: Maintenance & Repair

02 mustang, replaced the alternator everything fine but 2 months later battery died, replaced it no problems until morning, then each morning (2 weeks now) I have had to jump it. Autozone checked battery and said it was good. Any suggestions?

6 Answers

one autozone dont check battery under load 2 could have dead short charge battery concct pos.now with every thing turned off both doors closed,tuch neg.to neg.post and see if you see spark tutch 2or3 times if spark a dead short until found leave battery un hooked at night and while at work neg side ok.now if no spark get another alternator rember autozone or advance auto dont check under a load.

1 out of 1 people think this is helpful.
13,825

I would also try to find a parasitic draw (ie dome light left on, door left ajar, etc) that could be draining your battery.

375

I had same problem. Went to auto zone bought new battery because they wouldn't honor my 7 yr warrenty and it was only a yr on a gel cell.anyways new battery, dead few weeks later. Is your alarm draining it or going off to easy.if you have aaa call them.or have a battey place come out and they have a machine that hooks up under your dash and it will tell you if your alt. Is bad or where the problem is. That's what helped me.I thought it was my alt. But he said everything is fine.he didn't know what was draining mine.could be bad battery.they gave me a bad one.take it back and make sure its big enough for your car

3 out of 3 people think this is helpful.
4,395

Sounds like the battery isn't charging adequately,how are the battery terminals? Have they been replaced? Are they corroded? Might be time to change the terminals.....if they are fine......check for voltage drop between the alternator and battery. With car running, check voltage at the alternator, then check voltage at the battery. Have someone open and close power windows and check again. If you are seeing a 1 volt or more difference at all times you may have a faulty connection or cable..........I have had a few cars that had defective battery cables, which led to the battery not adequately charging..........

5 out of 5 people think this is helpful.
4,395

http://www.ehow.com/how_5927667_battery-cables-bad.html

1 out of 1 people think this is helpful.
1,365

Here's my suggestion, 1 check to make sure the terminals are tight, it happens they get loose for what ever reason, 2 are the terminals clean, best way to make sure is to take a terminal brush to them or baking soda and water, if those don't fix it probly time for new cables but start there.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Battery drain? 2 answers

    To Steven M: Have a 2006 mustang,V6, base. Best car I've ever had. No problems. Bought it with 25,000 miles and now it has 108,000. Alternator was replaced a few years ago. A couple days ago, the ba...

    2006 Ford Mustang V6 Base

    -

    Maintenance & Repair

  • Battery issues 26 answers

    Ok, I own a 2006 Mustang GT. I've owned the car since new and have now replaced the battery for the second time! It only has 34.000 KM, nothing has been changed, or modified. Is anyone else having th...

    2006 Ford Mustang

    -

    Maintenance & Repair

  • 08 4.0 Ford Mustang battery or starter problem? 6 answers

    I have an 08 4.0 Mustang and when I try to start it, it hesitates but usually starts. It seems to be getting weaker though every time I try to start it and then it wouldn't start so I had to jump it. ...

    2008 Ford Mustang V6 Premium

    -

    Maintenance & Repair

  • 1999 ford mustang 35. 3.8 v6 2 answers

    Battery cap dying only after it sat for 2 hours so went and replace the battery went and got a brand new alternator put it in car will crank fine but after cutting it off and let it sit overnight t...

    1999 Ford Mustang STD Coupe

    -

    Maintenance & Repair

  • Dead Battery 8 answers

    2002 Ford Escape V6 that has been having dead battery issues. For the past 2 weeks the battery has not been keeping a charge. Was able to start car by hooking up portable battery charger to batter...

    2002 Ford Escape XLS

    -

    Maintenance & Repair

Mustang

Looking for a Used Mustang in your area?

CarGurus has 42,626 nationwide Mustang listings starting at $1,699.

ZIP:

Search Ford Mustang Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Ford Mustang Experts

#1 Tom Demyan
Tom Demyan
Reputation 3,990
#2 FordNut
FordNut
Reputation 1,230
#3 COMETGUY61
COMETGUY61
Reputation 990
View All

Related Models For Sale

Used Chevrolet Camaro
378 Great Deals out of 40,505 listings starting at $3,500
Used Chevrolet Corvette
276 Great Deals out of 20,442 listings starting at $3,688
Used Ford Mustang SVT Cobra
3 Great Deals out of 265 listings starting at $3,900
Used Ford F-150
3,010 Great Deals out of 207,337 listings starting at $1,000
Used BMW 3 Series
1,463 Great Deals out of 38,440 listings starting at $1,890
Used Chevrolet Silverado 1500
2,541 Great Deals out of 151,790 listings starting at $1,500
Used Jeep Wrangler
502 Great Deals out of 18,397 listings starting at $2,500
Used Nissan 350Z
82 Great Deals out of 1,472 listings starting at $3,950
Used Honda Accord
1,003 Great Deals out of 74,760 listings starting at $899

Used Cars For Sale

2017 Ford Mustang For Sale
7 Great Deals out of 20,039 listings starting at $19,775
2016 Ford Mustang For Sale
62 Great Deals out of 3,603 listings starting at $16,999
2015 Ford Mustang For Sale
72 Great Deals out of 3,230 listings starting at $14,999
2014 Ford Mustang For Sale
69 Great Deals out of 2,778 listings starting at $9,500
2013 Ford Mustang For Sale
29 Great Deals out of 1,331 listings starting at $9,995