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  #1  
Old 05-24-2010, 04:28 PM
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Battery light keeps blinking

My battery light keeps blinking when i am driving my truck down the road and i have just replaced both batterys what do you guys think it is
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  #2  
Old 05-24-2010, 05:19 PM
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Re: Battery light keeps blinking

Most likely its your alternator. Have you had it checked recently?
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Old 05-24-2010, 05:33 PM
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Re: Battery light keeps blinking

.. I've never seen the battery come from the batteries.. Just the alternator
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Old 05-24-2010, 07:28 PM
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Re: Battery light keeps blinking

My alternator crapped out on me.... No warning from the battery light.

Replaced alternator with new one.... Now I have an intermittent battery light. Had Oreilly test the new alternator and batteries. Everything check out o.k.

Truck starts strong every time I hit the key. Im stumped.
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Old 05-24-2010, 07:37 PM
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Re: Battery light keeps blinking

Farm boy sounds like we are in the same boat, i replaced my alternator like two months ago and now it is flashing?
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Old 05-24-2010, 08:16 PM
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Re: Battery light keeps blinking

Although... I did notice on mine that the plastic clip where the plug locks onto the alternator was broken after I installed it. So the plug, plugs in, but doesn't 'lock' down. Obviously its charging cause i replaced the alternator a month ago, but still intermittent blinking.

Stupid electronics.
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Old 05-26-2010, 06:56 PM
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Re: Battery light keeps blinking

An intermittent fault could be caused by a few different things:

1) Loose wire (partially disconnected) -- this could be any wire coming from the alternator
2) Bad connector
3) Bad alternator -- when they get hot, they become less efficient and may not be providing sufficient charging. Much more common if you've bought a remanufactured alternator or a "cheap" one
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Old 07-12-2010, 04:46 AM
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Re: Battery light keeps blinking

are any other gauges acting funny? check your tach if it is jumping around.
could be voltage reg in alternator
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Old 07-13-2010, 12:02 AM
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Re: Battery light keeps blinking

Quote:
Originally Posted by Snake05 View Post
An intermittent fault could be caused by a few different things:

1) Loose wire (partially disconnected) -- this could be any wire coming from the alternator
2) Bad connector
3) Bad alternator -- when they get hot, they become less efficient and may not be providing sufficient charging. Much more common if you've bought a remanufactured alternator or a "cheap" one
I've seen this many times with aftermarket alternators. The regulator and internal coil windings are rebuilt by somebody they pay $1 hr....why do you think they have lifetime warranties on these things from Advance, Auto Zone, Pep Boys...etc...haha
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