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Technical Info: 3rd Generation: DRIVETRAIN Technical discussion of third generation (2003 - 2007) engine and drivetrain questions, solutions and upgrades.
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  #1  
Old 02-10-2018
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Default Second Alternator Fail

Alternator failed about 1000 miles ago (13 months) and was replaced by dealer w/ a rebuilt unit. Today after plowing snow the needle was at zero and the batteries were weak. Upon a restart the needle popped up but returned to zero after a few seconds. Any ideas ?
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Old 02-10-2018
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Easy fix. Pay very close attention to the passengers side battery and the connection of the B+ the terminal MUST be clean and no corrosion inhibitors such as NOCo or acid donuts.

Remove the connection bolts as well and clean the terminal and bolt.

Now with that being said check the drivers side battery. The battery temp sender is beneath this battery and of it is dirty truck will not charge.
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Old 02-10-2018
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👍 Thanks Max.
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2 '05 2500 4x4,QC's 48RE,3.73,Limited Slip,Plow Prep,Linex,ROKK,Afe 2 & Amsoil fluids (Boss 9'2" V-blades )

#1 SMARTY cr(SW5),TOYO/AT2's 285-70/17E's,Quad Commander,TransGo shift kit,Prodigy,Fold-a-cover,60 gal RDS aux tank,Corsa exhaust,FASS95/95 3 micron,Mag-Hytec DD tran pan,Bilsteins.
Pull a Cameo 5er (8800 lbs empty)

#2 SUPERCHIPS flashpaq & TOYO/AT2's 285-70/17E's, MBRP
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Old 02-13-2019
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OK, so I cleaned all 4 battery posts thoroughly Max and the truck ran fine for ~20 hours of snow plowing.
Then this morning while plowing the alternator gauge dropped to zero like it did before I cleaned the posts (and like it did before I changed the alternator). Drove home w/ the gauge at zero (actually 8), turned it off. When I restarted truck a moment later the gauge behaved normally! Any Ideas what is going on Max...battery plates touching...voltage regulator..??
BTW the Kikland batteries are 6 yo.
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2 '05 2500 4x4,QC's 48RE,3.73,Limited Slip,Plow Prep,Linex,ROKK,Afe 2 & Amsoil fluids (Boss 9'2" V-blades )

#1 SMARTY cr(SW5),TOYO/AT2's 285-70/17E's,Quad Commander,TransGo shift kit,Prodigy,Fold-a-cover,60 gal RDS aux tank,Corsa exhaust,FASS95/95 3 micron,Mag-Hytec DD tran pan,Bilsteins.
Pull a Cameo 5er (8800 lbs empty)

#2 SUPERCHIPS flashpaq & TOYO/AT2's 285-70/17E's, MBRP
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Old 02-13-2019
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Those battery cables can be a booger!!
I've had mine do this a few times. Couple times it's been the bolt in the cable end not completing the connection. Had each sides do it, was the + cable from right to left once.
Once in a while, start it in the morning, check gauges light, low voltage. raise the hood and twist a bolt just a little and everything is good.
Been a while now since it acted up.
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Old 02-14-2019
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Hi Smokediver.
Could you expand on the "bolt in the cable end"?
I think you are saying the bolt on the cable that clamps on the +ive battery terminal caused a break in continuity?
Thanks, Gary
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2 '05 2500 4x4,QC's 48RE,3.73,Limited Slip,Plow Prep,Linex,ROKK,Afe 2 & Amsoil fluids (Boss 9'2" V-blades )

#1 SMARTY cr(SW5),TOYO/AT2's 285-70/17E's,Quad Commander,TransGo shift kit,Prodigy,Fold-a-cover,60 gal RDS aux tank,Corsa exhaust,FASS95/95 3 micron,Mag-Hytec DD tran pan,Bilsteins.
Pull a Cameo 5er (8800 lbs empty)

#2 SUPERCHIPS flashpaq & TOYO/AT2's 285-70/17E's, MBRP
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Old 02-16-2019
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Yes, that's correct...the bolt that runs thru the cable end to clamp it onto the battery post.
Mine are like a double stud and the passenger side pos battery cable attaches to the short end of the stud on the drivers side. If this cable, or even the stud/bolt itself running thru the cable end doesn't make a decent connection it will show no charge. I had it several mornings till I pulled the corroded stud out and replaced with a 5/16 bolt.
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'07, megacab, 2WD, Dually, 6.7, auto,
Deleted, h&s programmer, jasper turbo, ETE tranny, 400k mi !!
'09, quad cab, Laramie, 2WD, Dually, 6.7, auto. 255k mi
Stock, until...
My Other Truck is a Fire Engine!!
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Old 02-18-2019
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A problem I have been finding consistently lately is these so called overhaul shops don't know how to overhaul anything. Recently I had an alternator fail fresh from a so called overhaul. I took it apart and 1, they didn't replace the brushes and they were shot! 2, they didn't turn the slip rings and they were badly chard and pitted. 3, the bearing were shot. All they did was clean it, slap their sticker on it and stole $180 from me. I took it back to them in a box and raised hell at their front counter.
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Old 02-28-2019
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Once again the alternator stopped working after 3 hours of plowing.
I have deep cleaned and "die-electriced" the 4 battery posts and bolts twice.
Any other ideas gentlemen?
__________________
aka dogram


2 '05 2500 4x4,QC's 48RE,3.73,Limited Slip,Plow Prep,Linex,ROKK,Afe 2 & Amsoil fluids (Boss 9'2" V-blades )

#1 SMARTY cr(SW5),TOYO/AT2's 285-70/17E's,Quad Commander,TransGo shift kit,Prodigy,Fold-a-cover,60 gal RDS aux tank,Corsa exhaust,FASS95/95 3 micron,Mag-Hytec DD tran pan,Bilsteins.
Pull a Cameo 5er (8800 lbs empty)

#2 SUPERCHIPS flashpaq & TOYO/AT2's 285-70/17E's, MBRP
Knowledge: Truth apprehended
Understanding: Truth comprehended
Wisdom: Truth applied
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  #10  
Old 02-28-2019
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Since alternator failure seems to occur after the batteries are warm is it possible that the alternator is programed to stop charging if the batteries get too warm??
__________________
aka dogram


2 '05 2500 4x4,QC's 48RE,3.73,Limited Slip,Plow Prep,Linex,ROKK,Afe 2 & Amsoil fluids (Boss 9'2" V-blades )

#1 SMARTY cr(SW5),TOYO/AT2's 285-70/17E's,Quad Commander,TransGo shift kit,Prodigy,Fold-a-cover,60 gal RDS aux tank,Corsa exhaust,FASS95/95 3 micron,Mag-Hytec DD tran pan,Bilsteins.
Pull a Cameo 5er (8800 lbs empty)

#2 SUPERCHIPS flashpaq & TOYO/AT2's 285-70/17E's, MBRP
Knowledge: Truth apprehended
Understanding: Truth comprehended
Wisdom: Truth applied
Reply With Quote
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