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RE: Dead 5kTQ Diagnostic quiz




>
>Simply because you have no alternator light does not mean the alternator is
>good.
>>From your description, the alternator is dead.  I had a similar experience
>about 3

>after the car died, I tried switching the ignition "ON" to see if the
>alternator light
>would come on. Well, it wouldn't!  Might want to check this out.
>
>Battery voltage while running should be about 13.5 volts.
>
>Ray Calvo
>porsray@aol.com
>1990 Coupe Quattro   
>

Perhaps the alternator warning lamp is burnt out. In most cases this could
prevent the alternator from charging, since the current through the lamp
helps bootstrap the field up, ( assists the residual magnetism in the core ).

Worth a try, see if the lamp comes on when you first turn on the ignition.
If it doesn't replace it. If it still doesn't come on, you may have lost
an internal connection in the alternator.

Hey, what am I saying "replace it", thats a good 1 hour procedure.....
wish there was an easier way for you to check, like if you
had a Bentley, put a small test lamp in parallel, or just take the
field wire, ( Bentley will tell you which color, ) and ground it to
see if the light comes on in the instrument cluster.

Alan