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Has your alternator generated more than 16V?

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Old Feb 21, 2003 | 12:48 PM
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Default Has your alternator generated more than 16V?

Sometime, my alt generated more than 16V.
I thought that the DIC on my C5 vert may be bad but since I got the CAP with digital display and it also showed 16.5 V.
Sometime it dropped to 9 volts or some.
Does anyone know what going on? Bad alt?
Thanks :cheers:
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Old Feb 21, 2003 | 12:56 PM
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Default Re: Has your alternator generated more than 16V? (mike76002)

Sounds like the regulator or the rectifier diodes are damaged. I would replace the alternator. ANYTHING over 15v for more than a few minutes (due to cold (32 degrees or below) starting) is extremely bad for the battery cells (6 cells at 2 volts apiece=12 volt battery). A properly regulating alternator will run between 13.8-14.2 at 70 degrees F. Don't wait, run don't walk and change out that alternator before you damage the electrical components, battery, and god know what else.

Kitt
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Old Feb 21, 2003 | 01:03 PM
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Default Re: Has your alternator generated more than 16V? (kittmaster)

Man, I should have it replaced by the dealer last time I visited since right now I have to copaid 200$ ... :mad
Should any DIC code stored in the DIC?
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Old Feb 21, 2003 | 01:15 PM
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Default Re: Has your alternator generated more than 16V? (mike76002)

Sometime, my alt generated more than 16V.
I thought that the DIC on my C5 vert may be bad but since I got the CAP with digital display and it also showed 16.5 V.
Sometime it dropped to 9 volts or some.
Does anyone know what going on? Bad alt?
Thanks :cheers:
Yes bad/damaged alt, but probably caused from a charging system not able to keep up with the extra demands put on the electrical system (imo). You might want to look into a higher output alternator and new battery. Try and see if the dealer will slip you a new glass mat under warranty. :D
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Old Feb 22, 2003 | 09:43 AM
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Default Re: Has your alternator generated more than 16V? (JoeyG)

If you have a $200 co-pay, forget the stock altenator. Put that money into a high-output type. Ohio generator is a ggod place to start. Expensive, yes, but worth it. :yesnod:
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Old Feb 22, 2003 | 05:42 PM
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Default Re: Has your alternator generated more than 16V? (mike76002)

For $200 you can have a good HO alt. Try here: www.alternatorparts.com

By all means get a new alt. If I’m not mistaken don’t you have a Yellow Top battery? If so, keep it and just upgrade the alt, and make sure the Big-3 is upgraded as well. And I mean ALL THREE wires not just two like some people seem to think.
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Old Feb 22, 2003 | 06:48 PM
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Default Re: Has your alternator generated more than 16V? (The^Nomad)

For $200 you can have a good HO alt. Try here: www.alternatorparts.com
I emailed these guys about their Extreme Duty Dual Rectifier CS-144 alts, and this is what I got back: "At an 800 rpm idle you will get 140, 170 and 190 amps out of the 140, 170 and 200 amp alternators respectively." :eek: I think I'll be getting the alt for my system from them :smash:


[Modified by Metal_Wulf, 6:48 PM 2/22/2003]
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Old Feb 22, 2003 | 08:11 PM
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Default Re: Has your alternator generated more than 16V? (Metal_Wulf)

For $200 you can have a good HO alt. Try here: www.alternatorparts.com


I emailed these guys about their Extreme Duty Dual Rectifier CS-144 alts, and this is what I got back: "At an 800 rpm idle you will get 140, 170 and 190 amps out of the 140, 170 and 200 amp alternators respectively." :eek: I think I'll be getting the alt for my system from them :smash:


[Modified by Metal_Wulf, 6:48 PM 2/22/2003]
:thumbs: :cheers:
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Old Feb 23, 2003 | 09:56 AM
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Default Re: Has your alternator generated more than 16V? (Metal_Wulf)

For $200 you can have a good HO alt. Try here: www.alternatorparts.com

I emailed these guys about their Extreme Duty Dual Rectifier CS-144 alts, and this is what I got back: "At an 800 rpm idle you will get 140, 170 and 190 amps out of the 140, 170 and 200 amp alternators respectively." :eek: I think I'll be getting the alt for my system from them :smash:

[Modified by Metal_Wulf, 6:48 PM 2/22/2003]
Why do you think I love my CS144 case 220amp unit so much? :hurray:
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Old Feb 23, 2003 | 11:19 AM
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Default Re: Has your alternator generated more than 16V? (JoeyG)

Why do you think I love my CS144 case 220amp unit so much? :hurray:
You just like to rev the motor when you start it, thats all :lol:
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Old Feb 23, 2003 | 12:12 PM
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Default Re: Has your alternator generated more than 16V? (JoeyG)

Why do you think I love my CS144 case 220amp unit so much? :hurray:
And here I thought I was the only crazy one to want/need at 200amp alt. :jester
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Old Feb 23, 2003 | 08:00 PM
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Default Re: Has your alternator generated more than 16V? (JoeyG)

Why do you think I love my CS144 case 220amp unit so much? :hurray:
:thumbs: :cheers:
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Old Feb 23, 2003 | 11:29 PM
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Default Re: Has your alternator generated more than 16V? (The^Nomad)

So far I have only seen it happened 1 time and just for about 5 - 10 seconds so I will wait until I need to bring my car in for another service.
I think I got all 3 upgrades that The^Nomad told me so I would think it'll be fine for a while. :cheers:
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Old Feb 25, 2003 | 07:44 PM
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Default Re: Has your alternator generated more than 16V? (M396 #00-011)

Why do you think I love my CS144 case 220amp unit so much? :hurray:

You just like to rev the motor when you start it, thats all :lol:
Just trying to egg you on so you'll finish your dang car!
Metal-Wulf I've had this alt for 4 years and three different vehicles (1 show, 2 play) and it hasn't let me down once!
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Old Feb 25, 2003 | 07:50 PM
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Default Re: Has your alternator generated more than 16V? (JoeyG)

Metal-Wulf I've had this alt for 4 years and three different vehicles (1 show, 2 play) and it hasn't let me down once!
sweet, I'll defiantly have to get one then, when I do my install (this fall). :thumbs:
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