Dying alternator - Pontiac G8 Forum: G8 Forums - G8Board.com
 
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post #1 of 4 (permalink) Old 06-08-2019, 05:01 PM Thread Starter
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Dying alternator

Hey guys, still a little new hear but bought a 2008 v6 model last year, and everything has been great until today.

Within 5 minutes I received an alternator notification, then a "charging service required" message, then a "low battery" and "battery saver mode" lall popped up. Is my alternator completely shot? If so where's the best place to find a good, cheap replacement?

I've also been trying to find a DIY installment video but haven't had much luck for the v6 models, so if anyone knows of a video that'd be awesome!

Thanks!
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post #2 of 4 (permalink) Old 06-08-2019, 05:31 PM
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Garage
Rockauto.com should answer your question regarding cheap replacement parts.

2009 SRM PONTIAC G8 GT
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post #3 of 4 (permalink) Old 06-08-2019, 05:42 PM
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Just to get an idea of the Alternators condition, get to the engineering page (while starting the engine) Then scroll down to the displayed battery voltage page. A good Alternator would show something like 14.7 volts +/- a little (or you may even have a full time voltage readout gauge in your car to view). If it just displays the *existing/current* battery voltage, that would be a good indication that the Alternator has taken a dive on you. There have been several that have lost their Alternators over the years (including me). Will start poking around at various sources for either a new OEM Alternator or an aftermarket version, an (if I find something worthwhile), I'll add some info to this post.


added info>>>>>

Not sure if a rebuilt or after market new units actually work as intended. For now as a reference point, a new GM OEM unit P/N 92173959 from Amazon goes for $158

Last edited by GOPHERIT; 06-08-2019 at 05:53 PM. Reason: added info
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post #4 of 4 (permalink) Old 06-08-2019, 05:57 PM Thread Starter
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Thank you,
I jumped into engineering mode and my battery voltage is showing 11.3v and my battery holding steady at 45% while idling.
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