My battery is always running down.

2004 CHEVROLET SILVERADO
49,000 MILES • V8 • 2WD • AUTOMATIC
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SIMMONSJH113
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My battery is always running down. Have had Battery and Alt checked they are good. I have used a test light and have a definite power draw. Have pulled all visible fuses and circuit breakers but I still cannot find problem. IS there more fuses? if so where are they?
Nov 28, 2008 at 2:26 PM
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DOCFIXIT
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So when you put test light in series with batt term and batt it lights? if yes you got a big drain. If all is so try disconnecting the B+ to alt. Light goes out then alt diodes out defective. Here are eht fuse panels in the diagrams below.
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May 13, 2021 at 6:34 PM
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SIMMONSJH113
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I went back and pulled alt. wire and light stayed on. I went so far as disconnecting alt. completly with no change. I rechecked all fuses and breakers with no change. I have double checked everything being turned off?????????????? What can I be missing???
May 13, 2021 at 6:34 PM
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DOCFIXIT
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Need a DVOM digital volt ohm meter placed in series with neg. batt term . Set on 10 amp scale. Are you pulling relays a large amp fuses in engine compartment?
May 13, 2021 at 6:34 PM
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SIMMONSJH113
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Yes I have pulled these and I now have a meter
May 13, 2021 at 6:34 PM