Last post on Nov 19, 2013 at 12:41 PM
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Chevrolet Tahoe, Electrical, SUV
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#60 of 456 Help Chevy tahoe battery or Electrical issues
Nov 09, 2009 (8:30 pm)
I Have a 2003 Chevy Tahoe z 71. the problem is that while driving the battery light will turn on and and all the gauges will go down and power right back up. The car will not turn off just seems like battery is trying to die. I replaced my battery after car once dying. But now it is a brand new battery and i still get my battery light to turn on and off. Another issue is my reader states i need it engine oil and i have 4qts still inside. Please Help.
#61 of 456 Re: Help Chevy tahoe battery or Electrical issues [tahoee09]
Nov 10, 2009 (6:58 am)
1.) Check for corrosion on battery terminals, and make sure they are very tight connections. Check the ground cable connection.
2.) Have your alternator (and battery), load tested. This will test that the battery is able to hold the correct voltage, and put out the current required, under both normal operations and maximum load. The alternator will be tested to ensure that it is charging up the battery to the correct voltage, and all the diodes and control circuitry are working to output its' rated maximum current. Most autoparts chains will do this test free of charge.
3.) If both of those are okay, then you will need some more indepth diagnosis on the main power buss (key switch, security system, main power relay, etc).
#62 of 456 Re: Help Chevy tahoe battery or Electrical issues [kiawah]
Nov 10, 2009 (9:33 pm)
Thank you for your help much needed.
#63 of 456 Dash is going crazy too!
Nov 29, 2009 (8:06 pm)
I have a 01. It has only happened to me twice. I'm not sure if the problem has been solved. If I need to take it to the dealer will it cost me an arm and a leg Should you just start with a battery first?
#64 of 456 Re: foxtail [2thebeach]
Jan 18, 2010 (3:17 pm)
Has anyone been able to find out why the 07 Tahoe will just shut down when driving at 50mph? I have had similar problems and no one knows why. Any feedback would be appreciated.
#65 of 456 99 Tahoe 4 dr 4wd ignition module keeps burning up. Help
Feb 25, 2010 (2:49 pm)
I have a 1999 Chevy Tahoe 4dr 4wd that keeps burning up ignition modules. I have replaced it 3 times since January 1. Any ideas would help
#66 of 456 Re: 99 Tahoe 4 dr 4wd ignition module keeps burning up. Help [fireman180]
Mar 19, 2010 (11:50 am)
I have a 08 Tahoe and it recently did the crazy lights, door lock, and won't crank. The dealership replaced the main fuse. This seemed to fix the problem but NO. Know from time to time when you get in the car and it won't start. You wiggle the hot wire near the firewall and it finally gets a connection. I have been to the dealership 3 times and they can't replicate the issue. Any Suggestions?
#67 of 456 Re: 99 Tahoe 4 dr 4wd ignition module keeps burning up. Help [eric69]
Mar 19, 2010 (12:10 pm)
It's under warranty...keep taking it back, and let them know what you are wiggling that get's it to work.
#68 of 456 Re: Tahoe Electrical Problems [cruzntym]
Mar 20, 2010 (7:20 am)
Did you ever get this issue resolved? My 2008 Tahoe is doing the same thing. I have narrowed it down to the ground or negative. I can wiggle those 2 cords and everything will be fine. The dealership replaced the main fuse, but this didn't work. HELP.
#69 of 456 Re: Tahoe Electrical Problems [eric69]
Mar 20, 2010 (8:29 am)
That was the only & last occurence of those issues. The dealership never could ID the origin other than a battery issue (replaced) and a compter module update that was done as part of normal maintenance. Hope you get yours resolved.