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Joined: Nov 2004
Posts: 1,206
Campfire Regular
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OP
Campfire Regular
Joined: Nov 2004
Posts: 1,206 |
I have a new to me 2006 Chevy 3500 with a duramax that after 3 days with out driving it the batteries will be dead. Old batteries it happened and with with new good batteries it has happened also, If you have had this happen or know how to troubleshoot it I would appreciate some guidance and no arm chair quarterbacking. Thanks Scott
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Joined: Oct 2018
Posts: 845
Campfire Regular
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Campfire Regular
Joined: Oct 2018
Posts: 845 |
Have the alternator checked. We had one that did it randomly. A pull your hair out kind of problem. Does it have an aftermarket auto start? They can give grief sometimes. Hope that helps.
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Joined: Nov 2004
Posts: 1,206
Campfire Regular
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OP
Campfire Regular
Joined: Nov 2004
Posts: 1,206 |
No aftermarket auto start.
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Joined: Aug 2006
Posts: 22,844
Campfire Ranger
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Campfire Ranger
Joined: Aug 2006
Posts: 22,844 |
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Joined: Jan 2006
Posts: 69,066
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2006
Posts: 69,066 |
Unhook a battery cable and put an ammeter in the line with the key OFF. If it shows power going through it, start pulling fuses 1 at a time until it goes away. It's possible that it's designed to keep something running full time. One thing that can draw power when it's off is a security system. Or maybe an underhood light that isn't shutting off.
“In a time of deceit telling the truth is a revolutionary act.” ― George Orwell
It's not over when you lose. It's over when you quit.
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Joined: Jan 2020
Posts: 5,132
Campfire Tracker
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Campfire Tracker
Joined: Jan 2020
Posts: 5,132 |
Try pulling the fuse to the radio, that was the problem in my 06 LBZ.
Life is good live it while you can.
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Joined: Nov 2004
Posts: 1,206
Campfire Regular
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OP
Campfire Regular
Joined: Nov 2004
Posts: 1,206 |
Thank you all keep them coming gotta get this figured out No canopy
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Joined: Jan 2006
Posts: 69,066
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2006
Posts: 69,066 |
Check the alternator and voltage regulator. It might not be properly recharging the battery so starting it a few times is pulling it down and leaving it there.
“In a time of deceit telling the truth is a revolutionary act.” ― George Orwell
It's not over when you lose. It's over when you quit.
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Joined: Nov 2017
Posts: 313
Campfire Member
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Campfire Member
Joined: Nov 2017
Posts: 313 |
Unhook a battery cable and put an ammeter in the line with the key OFF. If it shows power going through it, start pulling fuses 1 at a time until it goes away. It's possible that it's designed to keep something running full time. One thing that can draw power when it's off is a security system. Or maybe an underhood light that isn't shutting off. This! Don’t use a cheap amp meter. Also the fuse trays are known to go bad and cause parasitic drain. Had that on an 08 Suburban. New fuse tray, no more problems.
Last edited by 240NMC; 05/04/21.
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Joined: Jun 2016
Posts: 9,474
Campfire Outfitter
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Campfire Outfitter
Joined: Jun 2016
Posts: 9,474 |
I've removed the the fuses in my Tahoe for; power door locks, heated seats & mirrors. Unplugged the underhood light, & lighted passenger vanity mirror. Removed the dome light & glove box bulbs. Checked the alternator myself with a good digital VOM & even had an auto electric shop load test it. It was driving me nuts.
I've seen many lighted vanity mirrors on the passenger side of all brands of vehicles, but didn't know this over optioned damn thing had one on the driver side as well. I'd never used the sun visor, & the cover was closed on the mirror with the light on.
Before I found the additional lighted mirror, I installed an inline, remote control power disconnect I found on Ebay. It has a key fob just like the power door lock one. Sold as an anti-theft device, which is an adder, but another way to halt battery drain.
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Joined: Dec 2013
Posts: 23,639
Campfire Ranger
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Campfire Ranger
Joined: Dec 2013
Posts: 23,639 |
My ‘05 did the same. Parasitic battery drain. It was an intermittent problem and never got it diagnosed. Put a battery disconnect switch on the floorboard in front of the seat. Turned it off and on ea time. It was a work truck with 350,000 miles on it so not an issue that the clock was never correct.
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Joined: Oct 2013
Posts: 18,699
Campfire Ranger
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Campfire Ranger
Joined: Oct 2013
Posts: 18,699 |
Bud had an 06 that would go dead every once in a blue moon, swapped alternators and problem went away.
Last fall my 06 left me dead on 2 instances. I was going to swap batteries and when I took the cables loose there was a ton of corrosion between cable and battery. I cleaned em up, put new terminal bolts in the cable ends, greased em up good and have had no issues since.
Last edited by 10gaugemag; 05/09/21.
The last time that bear ate a lawyer he had the runs for 33 days!
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