[s-cars] Alternator problem - Help!

[Bares, Vittorio]

Make sure you check belt tension too.

I chased all the common issues for those symptoms and finally it was a
'slightly' loose belt.

Vittorio -

-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com] On Behalf Of Peter Golledge
Sent: Thursday, October 14, 2010 8:54 PM
To: J R
Cc: s-car-list at audifans.com
Subject: Re: [s-cars] Alternator problem - Help!



Sounds like a classic bad alternator, ABS light gets illuminated due to
low volts (not enough V to run ABS valves)

One question though... if the Battery is at 12.2V (low but not hugely
bad) how can the Alt be at 7.2V?  Might want to
check the resistance of the Alt - Battery cabling.  The Type 44
(5000/200) had a frequent failure in the splice in the
footwell but I don't know about C4.

I always rebuild my own Alt so I know who to curse when the break, so
far no cursing. :-)


On 10/14/2010 5:12 PM, J R wrote:
> I've got the battery light, brake light and ABS light lit on the dash
> console.  At higher RPMs, those lights go out, only to come back on
when
> RPMs drop.  I'm only getting 7.2 volts at the back of the alternator
at
> idle.  Battery is putting out 12.2 solid.  I just had it rebuilt a few
> months ago and it worked fine until now.  I replaced the serpentine
belt and
> tensioner (needed it anyway), thinking that maybe the belt was
slipping.  No
> change.  I just replaced the voltage regulator hoping for a cheap fix.
> Again, no change.  Anyone have any ideas?
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