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Is a sleeping module really asleep?
Hoping someone has some insight for me. I have this Avalanche that has an intermittent battery drain. Only twice have I momentarily caught it in the act, then it's gone. The draw is 0.25A. Usually after 15-20 minutes, the draw drops to an acceptable 25mA. What... Login to read more. 
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| Engine | 8.1 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
2002 Chevrolet Avalanche 2500 8.1L
| Engine | 8.1 L |
| Trans | 4-speed Automatic (Electronic) |
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