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1990 Buick Century Question: Battery light comes on

 

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Visitor, 2.5L 4 Cylinder, Wichita, KS, August 07, 2010, 18:04

When I shift car into reverse the battery light comes on. When I shift into either neutral or drive, the light goes out. The light will also come on sporadically while driving. Car has new battery and alternator.

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  • Answer #1

    Visitor, February 15, 2011, 19:46

    the light is being caused by an alternator problem it comes one when it is not reciveing the right voltage at the battery. sounds like you have a wire not tighten enough on the alternator look for a red wire it should be a decent size wire try to wiggle it on the alternator if it is loose just tighten it down should fix the problem otherwise you have other electrial problems!!!!

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