Actually, if the voltage checks low, you can usually get a few more
years/ months out of the alternator by simply putting in a new brush/
regulator assembly. Don't even need to take out the alternator! Not very
much money, either.
Al Brase

jimt wrote:

>I have seen some diesel that wouldn�t start cold if the glow plug circuit
>couldn�t get enough current.  Clean the battery terminal and inside the
>connector. Get it running and then check the voltage at the battery.  You
>should be getting about 13.6 or higher for most applications.  If
>considerable less check the connections at the starter terminal and clean
>them.  The heavy lug of the starter terminal is where the alternator
>connects to the battery cable.  This is a loose connection and corrosion
>point that gets missed often.  If voltage is still low get the alternator
>tested at a flaps if you don�t have a tester.
>jimt
>
>
>