Truck was just started after sitting for an hour or 2 in 20 degree
weathers, so in effect, it was a cold engine... so it was around 900 RPM's
... I ran the test for 2 straight minutes, and doing so, the RPM's drop to
around 750 which is normal *for me*. Multimeter dropped a few times to 2-
3, but bounced right back up in that 2 minutes.
Running at 900 to 1000 RPM the alternator/regulator should put out 14.2 to
I would check your meter with known good vehicle charging it's battery (you
can mark the face of the meter with a grease pencil if you want). Or check
against known good battery not charging (about 12.5 volts).
If your output is still low I would check that the alternator belt is
properly taut and not glazed (this would cause slipping - you did mention
that the meter dropped 2 to 3 volts).
If that is OK I would then check the regulator - it's probably integral to
the alternator. Someone more knowledgeable about specifics should answer
Seems a tad on the low side.
Now you have me thinking that if you had some sort of high current draw on
your battery & your charging system is not charging the battery correctly, the
high amp draw on the battery would deplete the electrolyte in the battery
But! If that were to be the case, at some point you wouldn't have enough of a
charge left in the battery to start your vehicle. So! I think that shoots
Look forward to bringing it in for service, (can you qualify for a home equity
loan?) you may need it to facilitate total repair of this problem. ;-)
1997 SFA 60920
1998,1999,2000,2001,2002,2003 AMA 602785
Due to E-Mail spamming bots my reply address is
incorrect. Add a "-" between mr and wizard
This is what we have to do to prevent "Spamming?"
Sucks doesn't it?
Dammit. That's my worst fear. I hate my dealer. I think I only get 2
of the "5 star service award" when I go there. <g>.
Probably time to find a new place to take my truk.
Anyway, thanks to all for assisting in my issue. You're replies are much
1) check and CLEAN both ends of the battery cables
2) check the voltage at the alternator battery terminal (truck running)
3) check the voltage at the battery (running)
4) IF you ahve a battery tester, load test the battery - free at most
parts stores - IN the vehicle - unhooked.
5) Report these figures back to board, they can help THEN.....
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