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2013 Chevrolet Suburban
Platform: GMT 400, 800, 900

05 Suburban with Parasitic Drain

Old Feb 7, 2021 | 12:34 PM
  #1  
DSGDSG's Avatar
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Default 05 Suburban with Parasitic Drain

Good afternoon everyone. I'm at my wits end with this issue and I don't know what else to do. I out of the blue got a parasitic drain on my battery. I have to disconnect the positive each time I get out of the vehicle when sparking because it will drain down under 10volts in no time. I have replaced the battery...twice. I disconnected the alternator yesterday and it ran down. I have plug and play LED headlights on my vehicle but they're over a year old and this issue is only 6 months old. I disconnected them and pulled the fuses, the battery still ran down. I put my multimeter in series from the negative and I can't get a reading at all for a draw on the battery so I'm not sure if I am putting the multimeter on the wrong settings. I have tried testing each fuse while the vehicle is off and I would get readings initially but the longer I left the leads on the contacts the reading would count down to zero. I've checked the leads on my multimeter for having gone bad and they are not bad.

It's been far too cold and this is getting really old to disconnect my battery each time. Does anyone have any ideas what could possibly be going wrong? When I put in a new battery, I can start the vehicle just fine the next morning. But the second morning, the battery is drained dead.

Thank you.
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Old Jun 1, 2024 | 4:49 PM
  #2  
rplatko1's Avatar
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Check for drain on the seat motors. Check make sure the doors register as closed ( Easy way to tell , if the light. Don't come on when you open ). Also, watch a video on how to connect your multimeter in series with the battery and pull one fuse at a time until you find what is drawing power, After the vehicle has been off locked for 15 mins( in case RAP didn't power off) good luck
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