[V8] Re: Electrical Charging Problem

Buchholz, Steven Steven.Buchholz at kla-tencor.com
Thu Apr 15 12:41:36 EDT 2004


... assuming that it is getting fully charged.  If you leave the battery on
a charger for a while and still see the battery not up to 12.6 then you can
start to suspect the battery.  I'm thinking the battery is OK because one
bad cell would drop you down to 10.5 volts or so.  Funny, since #344 was
sitting I put the battery on the charger ... and forgot to take it off ...
ended up cooking one cell ... 

... I'd say the prime suspect is the alternator ...

Steve B
San José, Kaleefohnia (USA)
> 
> looks like battery to me,  with the car off that battery 
> should be reading about 12.8.
> 
> 
> Mike,  glad you liked the gory details :)
> 
> 
> 
> scott.olson at nokia.com wrote:
> > 
> > 1990 V8 Auto. 120k
> > A few weeks ago, Mike LaRosa wrote an excellent 'gory 
> details' report on testing and troubleshooting the cable that 
> runs from the battery to the alternator.
> > I have been experiencing an intermittent alternator light 
> (usually at slow speeds, and with A/C running).  So, I pulled 
> out the tools on Sunday and went to work.
> > 
> > Multimeter probes:
> > Car at rest.  11.9v
> > Car running.  13.7v
> > both readings taken at the front battery (-) and (+) posts 
> and at the battery are identical, so I decided is not a 
> corroded cable.
> > 
> > What do you think is wrong?
> > Alternator?  One in the car is original.... Is 120k about 
> the life for this item?
> > Battery is 1.5 years old.
> > Car starts quickly, no stumble.
> > 
> > Regards,
> > ScottO
> > Texas.
> > Will be using A/C again by the weekend.
> 
> -- 
> 
>     _/_/_/  _/    _/  _/     _/      Mike LaRosa
>    _/      _/    _/  _/_/   _/       TSE - HAS
>   _/_/_/  _/    _/  _/  _/ _/        1617 Southwood Drive
>      _/  _/    _/  _/   _/_/         Nashua, NH 03063
> _/_/_/   _/_/_/   _/     _/
>   S U N                              Phone: 781/442-1250
>   S E R V I C E S                    Fax: 781/442-5488
>                                      Email:mc.larosa at sun.com
> _______________________________________________
> Audifans V8 mailing list
> Send posts to: mailto:V8 at audifans.com
> Manage your list connection: 
> http://www.audifans.com/mailman/listinfo/v> 8
> Have an Audi V8 
> question?  Check the Audifans 
> Knowledgebase!
> http://www.audi-quattro.org/cgi-bin/twiki/view/Audi/V8
> Have a V8 answer? ... Please help others by adding to the KB 
> ... all contributions welcome!
> 


More information about the V8 mailing list