Alternator (battery) light on
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Joined: Jul 2002
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From: USA
Alternator (battery) light on
My 99 2.5L has been putting on it's alternator light whenever engine speed exceeds about 3700 RPM. This happens regardless of vehicle speed, load, temperature, and electrical load.
I confirmed that the voltage is truly dropping to battery voltage at these times, and I can see that the belt is not slipping.
Anyone ever see this before? It may have been happening for some time unnoticed since I very rarely go over 3000 RPM.
Thanks,
Art
I confirmed that the voltage is truly dropping to battery voltage at these times, and I can see that the belt is not slipping.
Anyone ever see this before? It may have been happening for some time unnoticed since I very rarely go over 3000 RPM.
Thanks,
Art
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Joined: Jan 2001
Posts: 56,984
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From: Virginia
Alternator (battery) light on
Wait and see if anybody else has any ideas, but I haven't any advice except to change the alternator. I believe your late model truck has the regulator built into the alternator, so changing it may kill two birds.
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