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 battery dash light turn on
#1006601
08/20/10 04:51 AM
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Joined: Dec 2004
Posts: 32
OP
Getting the Wheeling Fever
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My battery dash light turn on but the trucks seems to be alright, should i take that like a warning from an alternator failure. Any advice 96 t100 automatic 4wd <img src="/forums/images/graemlins/rolleyes.gif" alt="" />
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Re: battery dash light turn on
[Re: RadiOwATt1oo]
#1006602
08/20/10 05:00 AM
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Joined: Oct 2002
Posts: 15,887
Toyota & Classifieds Moderator
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http://www.walkablecommunities.org/Democracy is two wolves and a lamb voting on what to have for dinner. Liberty is a well-armed lamb contesting the vote. **ubi apis- ibi salus**
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Re: battery dash light turn on
[Re: RadiOwATt1oo]
#1006603
08/20/10 01:16 PM
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Joined: Aug 2010
Posts: 13
Need a Spot
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The battery light usually indicates a bad charging system. My guess is that you are correct, and that your alternator is going bad (or is bad already). You can have Autozone or similar shops check it for free usually.
'97 Extra Cab 3.4 4x4 5sp 90K mi and counting.
Mods: KYB GAJs, Monroe damper, Marlin shifter seats, Kenwood sound, bedliner, Leonard shell, ES sway bar upgrades, Aisin Hubs...Best truck ever
Currently listening to: Ryan Adams and the Cardinals III/IV
Currently fishing for: reds and trout
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Re: battery dash light turn on
[Re: SCT100]
#1006604
08/20/10 04:18 PM
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Joined: Dec 2004
Posts: 32
OP
Getting the Wheeling Fever
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I'll check it and let you know. thanks <img src="/forums/images/graemlins/kewl.gif" alt="" />
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Re: battery dash light turn on
[Re: RadiOwATt1oo]
#1006605
08/24/10 06:46 PM
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Joined: Dec 2004
Posts: 32
OP
Getting the Wheeling Fever
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And bingo it was the alternator. There,it's fixed it.
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Re: battery dash light turn on
[Re: RadiOwATt1oo]
#1006606
08/24/10 07:47 PM
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Joined: Aug 2010
Posts: 13
Need a Spot
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Awesome! <img src="/forums/images/graemlins/smile.gif" alt="" />
'97 Extra Cab 3.4 4x4 5sp 90K mi and counting.
Mods: KYB GAJs, Monroe damper, Marlin shifter seats, Kenwood sound, bedliner, Leonard shell, ES sway bar upgrades, Aisin Hubs...Best truck ever
Currently listening to: Ryan Adams and the Cardinals III/IV
Currently fishing for: reds and trout
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 Re: battery dash light turn on
[Re: RadiOwATt1oo]
#1006607
08/25/10 04:28 PM
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Joined: Feb 2007
Posts: 476
Mudrunner
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My charging system isn't charging the battery. All voltage indicators (Scangauge II, cig socket reader) are reading 12V which tells me the battery isn't gitting the voltage. Cables and connectors are good and clean. Battery is topped up. I figured my charging light would indicate that there's a problem...but no it's failing at it's job. The bulb is good as I can see the indicator before I start the engine. Just pulled the alternator off and checked the brushes. All worn down. <img src="/forums/images/graemlins/frown.gif" alt="" /> Gonna see if the local Toyota dealerships have the parts. Lucky me that there's an alternator place near me... A-Alternator & Starter Rebuilders, 900 Grand Ave, Bacliff, TX 77518, 281-339-9099!! <img src="/forums/images/graemlins/smile.gif" alt="" />
1998 T-100 Xtra cab SR5 2WD Auto; Roadmaster Active Suspension; Yokohama Geolander HT-S; lowered air dam; full belly pan; 4? diffuser; 11" side skirts; dual transmission coolers; 67% grill blocked; Auto-RX'd; ScanGauge II/Ultra-Gauge
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Re: battery dash light turn on
[Re: BamZipPow]
#1006608
08/25/10 10:28 PM
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Joined: Feb 2007
Posts: 476
Mudrunner
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No go on both places. Had the alternator tested at AutoZone. It failed. <img src="/forums/images/graemlins/frown.gif" alt="" /> Got another one from the local parts yard fer $50. At least I have something working fer now. I still find it strange that it didn't register the lack of charging. I wonder if the internal voltage regulator gave up the ghost and in that process it can't report back to the system that it's not charging? <img src="/forums/images/graemlins/frown.gif" alt="" />
1998 T-100 Xtra cab SR5 2WD Auto; Roadmaster Active Suspension; Yokohama Geolander HT-S; lowered air dam; full belly pan; 4? diffuser; 11" side skirts; dual transmission coolers; 67% grill blocked; Auto-RX'd; ScanGauge II/Ultra-Gauge
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Re: battery dash light turn on
[Re: BamZipPow]
#1006609
08/26/10 02:20 AM
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Joined: Oct 2002
Posts: 15,887
Toyota & Classifieds Moderator
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I would imagine if all the diodes fried in the IC that would be the case. If you go to the tech articles at autoshop101 for charging systems, about page 6, there's a good schematic of the IC for the alternator. <img src="/forums/images/graemlins/cheers.gif" alt="" />
http://www.walkablecommunities.org/Democracy is two wolves and a lamb voting on what to have for dinner. Liberty is a well-armed lamb contesting the vote. **ubi apis- ibi salus**
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