Posted by George Marsh on December 19, 2013 at 07:05:49 from (50.121.6.110):
In Reply to: pulsing ammeter posted by dale kahler on December 19, 2013 at 06:49:55:
I'm confused: "The battery is charging at 14.6 volts, the ammeter is discharging when lights are turned on, engine on or off-normal."
If ammeter is discharging when lights are on and engine is on, then alternator has an issue.
The first thing I would do is remove alternator and take it to Napa or Auto Zone and have it checked out.
Second, I would also take battery to town and have it checked out too.
Third is where the fun begins. Someplace you have either a bad connection, or the lights are drawing too many amps, short. I once had ground strap with a lose connection.
My alternators don't start charging until the RPM's are above 1200. When alternator wakes up I can slow engine down a little and it still works.
I would also put a voltmeter on battery. Ammeter pulses, the voltmeter should pulse a little.
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