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General Technical & Electrical General technical and electrical discussion for the Ford Ranger that does not fit in any other sub-forum.

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Old 07-29-2009
White_Lightning's Avatar
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electrical issue

when i am at an idole, my battery guage on my dash goes from in the middle (normal voltage) to about a quarter of the way... like half voltage or w/e...

now i have a newer battery, and im pretty sure my altinator is working... my truck does idole at a lower rpm than it used to, and it only goes down at an idle... its worse when i turn my cab fan on... (AC or no AC)... it hasnt caused any issues... its just anoying at the moment, but could anyone shed some light on this for me?
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Old 08-14-2009
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It could be your gauge or even a poor ground but why not go to one of the auto parts store and have them test the alternator and battery under load just to be on the safe side.
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