Question about 1999 Pontiac Grand Am GT

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The needle on the needle keeps jumping up and doun and doesnt seem to be charging.

The needle on the charger keeps jumping up and doun

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  • Jonathan Suttles
    Jonathan Suttles May 11, 2010

    Hello, Exactly what needle keeps jumping up and down? If it is a battery gauge this may be your alternating charging your system. I would have your electrical system checked just to make sure your alternator is charging right and that your battery is good as well. If it is a differn't guage just email me and I will help you with that guages problem as well. I hope this information helps you!

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  • 304 Answers

It sounds like a defective alternator regulator, stator, or diode trio. Its probally better to get a rebuilt alternator.

Posted on May 22, 2009

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Why is battery showing 12.5 volts wont start when turn key on it drops below 11 volts been on charger for hours is the battery bad? possibly some other cause?


Sounds as if battery is no good. Replace with a new battery and have charging system tested to ensure it is working properly

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Car battery corroded, terminals white. Jumped car but doesnt rev. Must it be alternator or could a dud battery suck the juice from alternator to stop car reving?


I would take the battery out and have it checked, or, you might want to invest in a modern battery charger that can also check the charging system as well as desulphate lead acid cells.

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Jump start


I would say you never checked to see if the battery is any good

I most likely is dead or below 12.6 volts & you never jump a dead
battery,you try charging it

Jumping is not charging a battery,you need to own a battery charger

If the battery keeps draining or won't hold a charge you need
a new one,then if the problem exists you have someone do a
Parasitic Current Test to find out which circuit is staying on

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No crank, no click, no lights, no start


Sounds like the cable connections at the battery are not clean and tight, or a problem with power to the starter post, or the negative connection. The cig lighter is on a circuit of its own. Most everything else goes thru the key switch. The headlights are on a direct circuit too. But everything has to go thru the main battery cables.

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My 2006 bmw 325i doesnt start makes a click noiise when i hit the push start but no light on dash just the radio it complete doesnt start the battery got tested its fine


Certainly sounds like a lack of power in the battery.
Do you have a genuine BMW battery or a cheapie replacement?
Have you tried to jump start the vehicle.
Batteries can seem ok, but when called upon, the power drawn out of them can be insufficient.
Try charging battery and starting on the charger- or just jump start to see what happens

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I tried to charge my car battery with a Chicago Electric charger model 66783. I followed the directions for charging the battery in the vehicle. After selecting the charge rate of 10 AMPs, the ammeter...


Relax, the charger is working fine. What it is doing is charging the battery to 15.5V. During this time, the "charge complete" LED is off, and the current meter shows the needle going to the right. When 15.5 volts is reached, the current is shut off, the needle goes back to the left, and the LED goes on. When the battery voltage drops to 13 volts, the current goes on again, etc. At the beginning, with a very depleted battery, the needle will be towards the right, then as the battery gets charged close to full capacity, the needle will bounce back and forth because the charger is feeding current in short pulses. Towards the very end of charging, the needle will stay longer and longer at the left end (the LED will be ON), and spend less and less time to the right (LED will be ON for longer periods, and "blink" OFF less and less). Finally, at full charge, the LED will stay ON, the needle won't make excursions to the right, etc.

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Car will start after a jump, but doesnt last.


brain needs to be reset job for agent it is tripped.

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My 600amp jump pack needle hasn't been charged in a while


Have a look at one like yours in store & see what specs are on plug in to charge. It will say Output voltage ..., then how many amps, or milli-amps, for example: ( output voltage 13.5 VDC @ 800ma.) Now find a charger/adapter, with same specs, and plug. Perhaps one your using is very minimal output, or lower voltage. Be sure polarity symbol is same on both too.

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Car won't start. Acts like the battery is dead, however I can't jump start it.


Well if you cant jump start it thats a good sign that the battery is dead so replace it and you should be fine, and another way you can try is hook the battery up to a charger overnight and if it doesnt hold its charge then you will know if its dead or not.

Jul 04, 2009 | 1998 Oldsmobile Aurora

2 Answers

06 f150 if lights left on for under 10 min truck needs jump


your first three words...battery checks ok....??? See why its difficult to do this from my end?
Anyhow, here are a few suggestions to keep new battery OK.
If you like to sit in parking lots (or other places) with the radio on, put a small battery charger on your battery every month or so to bring it back to fully charged.
If you run the battery down by leaving anything on (key, dome light headlamps, and need a jump to start, charge the battery with charger also, as soon as you can. Reason is, your alternator is not designed to charge a battery. It's purpose is to maintain the state of charge in the battery. Though it may seem OK after a jump and drive, it will never again have a deep charge unless you put it there with a charger.
This also overworks the alternator.
So aside from keeping it clean on the outside, if you follow this rule it will be happy on the inside and give you even longer than its expected service life in return. Good luck with your car!!

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