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Battery holds 12 volts but tested bad - Cars & Trucks

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  • Cars & Trucks Master
  • 5,648 Answers

This mean you need new battery.No crank power.

Posted on May 07, 2013

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6ya6ya
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Posted on Jan 02, 2017

  • 4 Answers

SOURCE: Voltage declines at Battery terminals after starting

bad generator

Posted on Apr 30, 2009

pauman
  • 248 Answers

SOURCE: 2002 honda Civic. Ran

A discharged battery could have caused this problem,you must have left accessories or lights on...if your battery is working well then it must be the starter...

Posted on Jul 05, 2009

  • 96 Answers

SOURCE: battery good has gas clicks but does not start.

Its your starter or starter selenoid. If you can reach the starter, try tapping on it with a hammer or something that can reach. While your tapping it have someone inside the car keep trying to start it. This might be a temporary fix, but it will get you going. Please rate thank you

Posted on Sep 14, 2010

  • 1536 Answers

SOURCE: 2002 chevy tahoe 5.3 LS.

Check the wiring and connectors going to the alternator. It appears you have a bad connection or broken wire - that would cause intermittent flashing of the alternator light or a steady glow, depending on how bad it is. Pay special attention to the alternator output wire going to the battery - you may not have a clean, solid connection to the new terminal.

As an aside, a leaking seal around a battery post can cause significant deterioration of the terminal connections in a few days. After several bad experiences, I always apply a counter-torque to the battery terminal with one hand while I tighten the terminal clamp bolt with a wrench in the other hand. The counter-torque keeps the wrench from applying force to the battery post and cracking the seal. Since I started that practice, I've had very little trouble with terminal corrosion.

Posted on Jan 28, 2011

cansmo
  • 2431 Answers

SOURCE: red battery light on dash

Charging is sufficient you want 2 volts above battery, for that dash to be on there will be a terminal on the alternator that is not connected it is a single wire you will need to make sure that it is connected,the terminal have tendency to break off and sometimes people who put the alternator on forget to put that terminal on they just dont see it it a wire by itself

Posted on Apr 30, 2011

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I rigged a 12 volt inverter into my 2002 honda accord cigarette lighter port and it fried it. I mean the radio quit working actually the whole middle console shut down and the car died with me but crank...


first check all fuses this is done by using a test light 12 volt . put one end to ground or negiative side of battery. touch other end to fuse with key on the light should light on both sides if only one side lights up replace the fuse. if no fuses are bad I suggest testing the alternator .if this was helpful please leave good feed back

Jan 13, 2015 | 2002 Honda Accord

Tip

12 volt battery test


I have seen many times a 12 volt car battery pass the diagnostic test performed at a repair shop but still fail while being used in the car.
A simple test to do at home is the cranking amps test. Place your 12 volt meter on the battery and check for 12 volts. Then looking at the meter crank the car over. If the voltage drops to 10 volts with all accessories off then the batteries cranking storage amps is weak. A bad scenerio would be the battery drops to below 9 volts. Below 9.6 volts there is not enough electricty to provide good spark to fire the engine.

on Aug 14, 2010 | Chevrolet C1500 Cars & Trucks

1 Answer

I go to turn the van on and all i get is a click, all lights come on and battery tested out fine. Tried jumping it didnt work, mechanic took a hammer to the starter still didnt work. Any advice will help...


If the battery cables and battery check out fine then test for 12 volts at the signal wire at the starter when the ingnition key is turned to start. If 12 volts is present then the starter is bad or the ground strap from the engine to chassis is not getting a good connection. You can test for the the ground by placing a jumper cable to the negative battery post and the engine.

No 12 volts when cranking? Then check relay or ignition switch.

You can apply 12 volts to the signal wire at the starter to verify it will turn.

Do the interior lights dim when the key is turned to start?

Aug 17, 2011 | 2005 Dodge Caravan

1 Answer

It wont hold its volts and it powers down when i drive it or let it sit running after 5 min new bat , alt , starter


your battery needs replacement, it may show 12 volts but the amps aren't being charged enough,, if you take the battery and have it load tested,, you will see that one or more of the cells isn't charging correctly,, if the battery checks out ok, then with the truck running, place test leads on the pos and neg battery terminals,, you should be seeing a reading of 13.5-14.5 volts,, if not your alternator is bad, if you do,, its the battery for sure , make sure also that all the battery connections are clean and tight ,, dirty or loose connections will prevent good charging

Aug 13, 2011 | 1996 Dodge Ram 2500 Club Cab

1 Answer

Battery is not charging but alternator and battery are testing good


check for bad cell, need a battery tester so it can put load on battery it might read 12 volts till u test.read voltage from alternator batt connection should be more than 12 volts. if its 13 or more be sure wire goes back to battery is charged and connected,

Mar 23, 2011 | 1996 Kia Sephia

4 Answers

Detemined I had a bad alternator on a 2002 Hyundai Accent. After I changed it and got a jump the car would still not run. Should I put a battery charger on the battery to charge it fully?


You should have a qualified shop perform a charging system diagnostic on your car before buying any more parts. With a good alternator and jumper cables connected to a running vehicle, your car should stay running.

Mar 07, 2011 | 2002 Hyundai Accent

1 Answer

Wont start,no sounds no power,completely dead


You will need a volt meter to figure this one out. Battery voltage? Should be above 12 volts, and while you are trying to "crank" the engine over, if it's still over 12, you need to see if that power is getting to the starter motor. If it goes below 9 or 10 volts, you either have a bad battery, or the starter motor is shorted, or bad.
To test the starter, you should have a large wire going to the starter that has 12 volts all of the time from the battery. A smaller wire will have 12 volts only when the key is turned to "start". If you have these and a good ground, the starter motor is bad.

May 30, 2010 | 1997 Toyota Corolla

2 Answers

Will not charge. replaced alternator, and voltage regulator. fusible link is good. battery tests good


good the alternator you installed be bad? if it tests good then theres a fuse or a wire thats bad, check links at starter and battery and alternator if it has them there,start there, i would first have that alternator tested.good luck. also check wiring to regulator had problems with that!!!!

Nov 14, 2009 | Lincoln Mark VII Cars & Trucks

1 Answer

ALTANATER NOT CHARGING BATTERY


you will need to test this to be sure if its not charging then take it out and have it tested for free at autozone and get the replacement parts there also.
have the new one tested as well.
put a 12 volt test meter on the battery with the engine off.
take reading
then check reading with engine running .
take new reading.
if there the same the alt is bad.
volt should be be low 12 volts when off and should be above 12 volts when on.

keep me posted.
jm

Jul 29, 2009 | 1987 Acura Legend

1 Answer

Check lights


It could be from a few issues. It definitely has to do with either the generator not working properly (recharging the battery, or a faulty battery not holding a charge. If you happen to have a voltmeter, you can test the battery voltage before you start the truck (should be about 12 volts), then test it while the truck is running (should be reading around 14 volts) this will mean the generator is charging the battery. Most batteries last about 3-5 years on average. If the voltage is not above 12 volts when the truck is running, the generator is bad, and you could get stuck with a dead battery.

Aug 09, 2008 | 1997 Dodge Ram 1500 Club Cab

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