Battery or Alternator?

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08-02-2012, 10:35 AM

#16

bambam0417

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Quote:

Originally Posted by Bustedback

How old is the battery? Load test it and see if it drop bellow 9.6 volts with a 200 amp load on it.

^x2! just because it says 12.6 volts doesn't mean its a good battery.

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08-02-2012, 11:27 AM

#17

anothadayridin

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I agree what my Cherokee. Used to do was fuelpump would keep running. I changed the relay it fixed the problem. Of drainage my guess is it could be that ur AC clutch staying on or maybe a glovebox liight just my 2 pennies

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08-02-2012, 12:21 PM

#18

Bustedback

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The first place to start with an electrical problem is the BATTERY, once it checks out ok, then you can start throwing wild a$$ guesses at it.

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08-02-2012, 01:01 PM

#19

RTorrez1

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Quote:

Originally Posted by anothadayridin

Did it die when u took the terminal. Off if not try that. DO NOT DO THIS!!!

Quote:

Originally Posted by 94XjSport94

alright what would that tell/prove? ALL IT PROVES IS THAT YOU DON"T KNOW HOW TO WORK ON NEWER VEHICLES. Doing this on can fry your computer You Never what to do this on a vehicle with a computer!

Quote:

Originally Posted by Bustedback

The first place to start with an electrical problem is the BATTERY, once it checks out ok, then you can start throwing wild a$$ guesses at it.

This is what you want to do.

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08-02-2012, 01:23 PM

#20

tgordon

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sorry, wrong thread

Last edited by tgordon; 08-02-2012 at 01:57 PM.

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08-02-2012, 02:24 PM

#21

94XjSport94

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Year: 1994

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Alright i did some more tests and it turned out my battery was bad... was from and 4/09 so it was about 4 years old... I think the alt overheated and caused a bad cell in the battery... New duralast gold for 80 bucks and im good to go!!

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08-02-2012, 04:51 PM

#22

anothadayridin

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Quote:

Originally Posted by 94XjSport94

I run marine. Batteries. No spill gel cell can get em at most. Battery. Places. For 50-100$ although. Optimas are a good marine battery. To

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08-02-2012, 08:47 PM

#23

94XjSport94

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Quote:

Originally Posted by anothadayridin

I run marine. Batteries. No spill gel cell can get em at most. Battery. Places. For 50-100$ although. Optimas are a good marine battery. To

Ive heard that the deep cycle batteries are bad for your alternator... cant say why they just are

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08-02-2012, 10:03 PM

#24

anothadayridin

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Quote:

Originally Posted by 94XjSport94

Ive heard that the deep cycle batteries are bad for your alternator... cant say why they just are

I've ran em for years. N only time my alternator. Fails is in muddysandwater

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08-02-2012, 10:19 PM

#25

BatmanXJ

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Bat can test with 13 volts but could have a dead cell. I had a similar issue. I thought something was draining the battery but turned out to have a dead cell. Tested good on a volt meter and bat tester but would not crank the jeep. Dead cell too away from the cranking amps. I replaced My batt and no issues since. I thought I had a draw just because of how it would seem to go dead so fast. I tested to see if it had a draw by simply un hooking bat over night after jumping and letting set to charge. hooked back up in morning and sure enough no crank but had 12volts.

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08-02-2012, 10:22 PM

#26

94XjSport94

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Quote:

Originally Posted by BatmanXJ

Pretty similar to what i had to do... I tested how many amps the system was drawing between the terminal and post and it was so minuscule that i knew there wasnt anything draining it... well its all good to go for now... Tomorrow im gonna hook up all my accessories to it again and change the OFA o ring and maybe go oversized filter...

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