afrakes Posted February 11, 2016 Author Report Share Posted February 11, 2016 Good point if u left the doors open while doing big 3 depending on how long it took could have drained the battery. Everything good now trucks starts ok?As of last night after I got the agm installed, yes. Haven't been out this morning yet. But the battery was disconnected while I did the big 3, so that's another weird thing for me. But as long as everything looks good this morning/today, I'm going to pop a fuse back in my upgraded 1/0, if any issues arise after that I know I screwed something up. But by inspecting everything multiple times now I don't see how I could have screwed anything up. Unless the stock battery to alt positive has an in line diode? Edit: Went out and checked, battery is sitting at 12.49, it was 12.62 before I went to bed. Started just fine. Vehicle: 2014 GMC Sierra 2500HD WT Head Unit: Pioneer DEH- Mids/Highs: Focal Integration ISC 165’s (front) Subs/Amps: TBD Link to comment Share on other sites More sharing options...
MotorCityFats13 Posted February 11, 2016 Report Share Posted February 11, 2016 sounds like a good ol case of the "I replaced the dead battery and 2 days later the water pump failed" what did you do to my car.... yea I got that from a good friends babys momma years ago.... all I could do was laugh! Link to comment Share on other sites More sharing options...
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