Not charging battery light - Chevy and GMC Duramax Diesel Forum
06-07.5 LBZ & LLY Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect

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Old 01-30-2012, 03:44 PM   eBay Motors  #1 (permalink)
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Not charging battery light

A friend of mine just got his 06 duramax and his "not charging battery light" comes on at start up and goes off when he starts driving
Any ideas?
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2006 LBZ
84,xxx miles
Superchips Flashpaq
3.5" straight pipe exhaust/dumped
Modified Air Intake with WIX air filter
Resonator Plug
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Old 01-30-2012, 03:58 PM   eBay Motors  #2 (permalink)
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Possibly a sticking regulator.
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EFI Live V2 w/dsp5 MAX EFFORT by Idaho Rob,
EGT's Never higher than 1150*
Cognito Braces, and ATP Sleeves, BD Manifold, ARP H.Studs, BATMO, M.P. mod, MA Aluminum Bleeder, PPE Boost Valve, Banks Ram Air- Intercooler- Wastegate, FASS 150, LBZ FPR, Shimmed FPRV, Built Trans, 4" MBRP turbo back exhaust w/6"tip, Corsa Muffler
@180,000-New injectors from Lincoln Diesel, CAT Adapter/filter/spacer

Air Lift, Bilstein Shocks, Leveling Kit, Recon LED tail lights & over cab lights, 20" Forged Aluminum WELD Racing Rims, 295/55/20 Nitto Trail Grappler Tires,
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Old 01-30-2012, 04:01 PM   eBay Motors  #3 (permalink)
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How should he go about testing that
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2006 LBZ
84,xxx miles
Superchips Flashpaq
3.5" straight pipe exhaust/dumped
Modified Air Intake with WIX air filter
Resonator Plug
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Old 01-30-2012, 04:03 PM   eBay Motors  #4 (permalink)
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Take the truck to Autozone-[and others] , they can test it on the truck.
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Chevy 04.5 LLY, 2X, shell, XDR, MikeL Heavy duty up-grade, 6spd, TransGo, deep pan, blocked, fingered, de-badged, PCV, 65 Gallon replacement Aero tank, PPE on 2, LBZ-mp, Kennedy pump, shimmed, Pre-fuel filter, tow mirrors, BU cam, gauges, GPS, Sirius, bags, custom grille, fender vents, HD trans cooler- Curt front hitch, footwell lights, load lights, Studs, head gaskets.--- Jerry
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Old 01-30-2012, 04:08 PM   eBay Motors  #5 (permalink)
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You can also call someone that sells alternators, and ask how to test the regulator yourself. I know there is a way to jump power to one of the pins on the ALT, and this puts it under load. If you notice the alt working harder the regulator is not sticking. But for accurate results, you should do this when the truck would normally exhibit this problem.
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Lincoln Diesel Specialties
"Quality Parts and Service at an Unbeatable Price"

Or call us... 920-765-1615


2001 GMC Sierra 2500HD, Limited Edition, CC,SB
EFI Live V2 w/dsp5 MAX EFFORT by Idaho Rob,
EGT's Never higher than 1150*
Cognito Braces, and ATP Sleeves, BD Manifold, ARP H.Studs, BATMO, M.P. mod, MA Aluminum Bleeder, PPE Boost Valve, Banks Ram Air- Intercooler- Wastegate, FASS 150, LBZ FPR, Shimmed FPRV, Built Trans, 4" MBRP turbo back exhaust w/6"tip, Corsa Muffler
@180,000-New injectors from Lincoln Diesel, CAT Adapter/filter/spacer

Air Lift, Bilstein Shocks, Leveling Kit, Recon LED tail lights & over cab lights, 20" Forged Aluminum WELD Racing Rims, 295/55/20 Nitto Trail Grappler Tires,
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Old 01-30-2012, 04:22 PM   eBay Motors  #6 (permalink)
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The regulator is electronic and mounted inside the alternator. They usually work-- or they don't work.
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Chevy 04.5 LLY, 2X, shell, XDR, MikeL Heavy duty up-grade, 6spd, TransGo, deep pan, blocked, fingered, de-badged, PCV, 65 Gallon replacement Aero tank, PPE on 2, LBZ-mp, Kennedy pump, shimmed, Pre-fuel filter, tow mirrors, BU cam, gauges, GPS, Sirius, bags, custom grille, fender vents, HD trans cooler- Curt front hitch, footwell lights, load lights, Studs, head gaskets.--- Jerry
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Old 01-30-2012, 06:03 PM   eBay Motors  #7 (permalink)
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Yeah I know... I wish that was the case all the time! But for me, it worked after driving about 5-10 miles. Once it kicked in it stayed working. But I was told by my alternator salesman that they "stick sometimes." And replacing mine fixed it for me. I am just giving an opinion though. And I have an 01, so I don't know how everything works.
__________________
-Aaron-
Lincoln Diesel Specialties
"Quality Parts and Service at an Unbeatable Price"

Or call us... 920-765-1615


2001 GMC Sierra 2500HD, Limited Edition, CC,SB
EFI Live V2 w/dsp5 MAX EFFORT by Idaho Rob,
EGT's Never higher than 1150*
Cognito Braces, and ATP Sleeves, BD Manifold, ARP H.Studs, BATMO, M.P. mod, MA Aluminum Bleeder, PPE Boost Valve, Banks Ram Air- Intercooler- Wastegate, FASS 150, LBZ FPR, Shimmed FPRV, Built Trans, 4" MBRP turbo back exhaust w/6"tip, Corsa Muffler
@180,000-New injectors from Lincoln Diesel, CAT Adapter/filter/spacer

Air Lift, Bilstein Shocks, Leveling Kit, Recon LED tail lights & over cab lights, 20" Forged Aluminum WELD Racing Rims, 295/55/20 Nitto Trail Grappler Tires,
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