Question about 2003 Chevrolet Tahoe

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My chevy tahoe has a light on saying battery not charging .I replaced the battery the light is still on how do i check my alternator without a machine.

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Take it to AutoZone... they will do a charging system inspection free of charge!

Posted on Sep 28, 2010

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Some auto parts stores can test your alternator for you. but you have to remove it from the engine first. Sometimes it's not an easy task. But once you can get it tested, you can figure out if that was your problem or if it is your battery cables. Good luck.

Posted on Sep 28, 2010

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HOOK A DIGITAL VOLTMETER TO THE CAR BATTERY.WITH THE VECHICLE RUNNING YOU SHOULD HAVE 13.5 TO 14.5 VOLTS AT BATTERY IF NOT ALTERNATOR NOT CHARGING BATTERY.

Posted on Sep 28, 2010

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If you have a multimeter you can check for voltage..of 14.5 volts under full load a/c on lights on ....if not its beter if you take it to a local parts store most stores check charging systems for free

Posted on Sep 28, 2010

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1 Answer

My 2009 Chevy Malibu just had a new battery put in within the last 60 days. Then I needed a new transmission. Got it fixed. Today my battery light comes on and stays on. What is this?


The light means that your battery is not being charged properly. It could be that when the transmission was replaced, they alternator belt was not put in properly or tight enough. I'd do the following:
1. Check battery connections to make sure they are clean and tight.
2. Check the drive belt to the alternator. It should be tight and not slipping.
3. If neither of the above is the problem, fully charge the battery with a battery charger so you can drive it for a while. Don't drive it without charging or you may get stranded. Don't let the battery run all the way down either or it may ruin it.
3. Check alternator output by driving to a nearby auto store or the place you had it repaired. They usually can check your charging system for free. The alternator could have decided to malfunction, although it's pretty new.
Good luck...

Jan 03, 2017 | AC Cars & Trucks

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Battery not charging light. wont start


You have so sort of wiring issue, check the battery supply to the fuse box under the hood, it may be corroded.

Mar 21, 2014 | 2003 Chevrolet Tahoe

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2000 Chevy 1500 battery light blinking, but system is charging fine? We thought maybe a bad diode so we swapped the alternator out with a used one. Light did the same, blinking battery icon on the...


batt mayb bad test for 12.6v -is it over 3yr old---must hold that charge ovanite--any points lower means its wearing--------if system chargn fine why did u swap altnator--------that lite cud mean a failn intrument cluster or computer prob---try unplugn computer cleaning thepins-then plug bac in once or mor

Oct 29, 2013 | 2000 Chevrolet Tahoe

1 Answer

What does it mean when the battery light comes on for my 2001 chevy Tahoe?


Usally it means that the alternator is not charging.Check the voltage coming out of the alternator with the engine running.It should be 13-14.7 volts and if its less than 13 volts or more than 15volts then replace the alternator.If alternator test good then check battery voltage you need at least 12 volts.

Jan 19, 2012 | 2001 Chevrolet Tahoe

4 Answers

I have a 1999 chevy tahoe and after my battery died I had a friend change it after getting a new one but now theres a light inside that is on that says change cables what does that mean?


  • There is no check cables light. This is a check engine light. You can try to remove the cables for two minutes and then reattach them and see if this works. More than likely it won't. You will have to go to your local major parts store like Auto Zone, Advanced Auto, NAPA etc and they can scan your PCM for free and pull the codes so they can be crossed and the reason for the code[s] diagnosed.

  • Hope this helps.

Oct 28, 2011 | 1999 Chevrolet Tahoe

1 Answer

Replaced alternator and battery in 2002 Chevy Tahoe. Battery voltage remains between 9 and 14 (leaning more towards 9 and at times falling completely until trucks shuts off)


Hello,
When you say battery voltage how are you testing it? Are you looking at a gauge on the dash? Or are you physically testing it with a multi meter? If the truck is dying and you recently replaced the alternator and battery I would first suggest you to check all them connections again real good. Snug them all up. Check for corrosion and clean as needed. Did you replace the battery and alternator with new/re-manufactured battery and alternator? The alternator needs to put out at least 13.6 volts to charge your 12 volt battery or the battery will not maintain a charge. However the alternator runs the vehicle once it is started. The battery is used only to start the car and then the alternator runs it. So if your vehicle starts and runs and then dies you may have a bad alternator. Check your connections first and then test the alternator with a multi meter. Anything less than 13.6 volt will not suffice. 14+ volts would be the hopeful output of a good alternator.
regards, Tony

Apr 12, 2011 | 2002 Chevrolet Tahoe

1 Answer

2004 chevy tahoe battery not charging light is on


here is how i solve my battery/charging issues:
1. as preventative maint. i purchase a new battery for my vehicle every 5 years regardless.
2. when i have a battery issue i call around to auto part stores to see who has the equipment to test the battery to determine if the battery is the problem.
3. if not the battery, often times the regulator (usually internal in the alternator) is the problem, an auto store may have the tester for this, again call ahead.
4. if its the internal regulator, you can have the alternator rebuilt or purchase a new one, basically a push either way.

good luck.

Apr 05, 2011 | 2004 Chevrolet Tahoe

1 Answer

2005 chevy tahoe dies


you might have the alternator checked or simply replace it.. i would also replace the battery if its more than 2 years old

Feb 11, 2009 | 2001 Chevrolet Tahoe

2 Answers

My 96 chevy Tahoe wont hold a charge and dies after about an hour. I replaced the alternator and even got a new battery. So where do I need to start looking next


Check the big red wire on the back of the alternator for power. The wire likes to get corroded in half inside the casing but is still held together BY the casing. you can even take a jumper cable from the positive side of the battery to the big/single wire on the back of the alternator. Now , you could have a bad ground also. take a voltmeter or test light and with the ground of the tester on the ground of the battery check for power on the case of the alternator. Another thing , does the alternator or charge light on the dash light up woth the key off? the alternator knows to "start-up" or "field-up" by the power it recieves through the bulb before the engine is started. once the engine starts the small brown wire on the alternator goes hot and shuts the light on the dash off cause it now has power on both legs of it. if the bulb blows then the alternator won't field-up. good luck. Scott

Sep 26, 2008 | Chevrolet Tahoe Cars & Trucks

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