Question about 2008 Chevrolet Suburban

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Service battery charging system message but battery is 100% charged on 2008 Suburban LTZ.

Car wouldn't start. Jumped it. took it to service location to test battery and alt...all good.

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Posted on Jan 02, 2017

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  • 88 Answers

SOURCE: Service Charging System

DONT START THE CAR///IGNITION ON//PRESS THE GAS PEDAL DOWN 3 TIMES SLOWLY//THEN START THE CAR. THAT RESETS THE COMPUTER AND THE CHARGING SYSTEM WARNING LIGHT.

Posted on Dec 22, 2008

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  • 9 Answers

SOURCE: 1988 chevy suburban charging system

First check alt At The Back of Alt Big Red Wire Were hooks to Post (stud) Do you have voltage ?? How Much??
What Voltage do you have at same Place with Engine Running ??
Now At wires Were they plug into Alt ,Top. Wires in White Plastic Clip, Do You Have Powe With Key On ?? How Much Voltage??
Jump across the 2 in the clip (with Engine Running)ONLY TEMPORARY!! Do You Have Voltage at Battery ?? How Much??
If Over 13volts With Clip On (Jumped) You Need A Internal Voltage Regulator ..
Is Batt Light On on Dash ??? Theres A Lot Of Testing You Can Do !!! And I will Need More Infomation to Keep Going ... These are just some Possible Problems No Way In Depth ...
Could Be a Number of things Or May be Just as Simple As a Blown Fuse, Dirty Batt Cables ETC etc etc I Hope It Puts You On The Right track !!!!!!!!!!

Posted on Jan 07, 2009

canbruce75
  • 1776 Answers

SOURCE: 2003 Chevy Suburban, Alternator failed,

I would look for a short in the output wiring at the alternator. My nephew had an intermittent charging problem and I took the car to an autoparts store and had them check the alternator output. Most parts stores will do the check for free. Anyway, while it was hooked up and the output was being checked, I fiddled with some of the wires at the alternator to see if it had any effect. It did. I noticed that as I moved the wires around, the output changed. I was able to isolate the problem to a wire that ran inside the plug. I resoldered the wire and that fixed the problem. I'm not saying that your problem is the same, but I would definitely look at a wiring short somewhere. I sympathize, since there is nothing more aggravating than finding the source of some electrical issues. Anyway, I hope this helped and that you find a resolution to your problem. Best wishes.

Posted on Aug 28, 2009

  • 534 Answers

SOURCE: New alternator didn't charge battery. (2VDC

As the car re-started, the battery is not flat.
The voltages measured indicate a problem with either the power or ground connection in the circuit between the alternator and the battery.

You likely have a intermittent / poor ground connection somewhere in the power system.
Check battery terminals are clean and firmly attached.
Check battery cable and alternator ground connections are intact and in good order.

Posted on Oct 30, 2009

  • 288 Answers

SOURCE: servicing battery charging system.

Check the battery terminals for cleanlyness and tightness.
Check the voltage when stopped, it should be 12 volts.
Check the voltage with the motor running, it should be 14 volts. If not the alternator is not charging.
If the battery voltage is low then it may need replacing.

Posted on Sep 05, 2011

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