Question about 2000 GMC Savana
It might be a shorted diode in your alternator.
when the engine is cold,
put a battery charger on the battery, set it to a low amp setting, like 10 amps.
leave it on for half an hour or so.
feel the alternator to see if it gets warm,
if it is warmer than the surrounding components, it might be drawing current from the battery.
at this point you might wanted to get it tested.
Posted on Aug 06, 2010
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Posted on Jan 02, 2017
disconnect battery put a test light between neg of battery and neg of cable if it lights u have a draw if so take out inter lamp fuse if still there put test light back on batt and cable and start removing fuses till lamp goes out then u know what cirit is drawing
common causes glove box lamp int lamp trunk lamp radio good luck
Posted on Nov 26, 2009
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