Parasitic loads - GM trucks & SUV's
I have a 2011 GMC Sierra 1500 that I bought new 3 1/2 years ago (now out of warranty). I’m beginning to believe the electrical system was designed by Lucas Electric, the Price of Darkness. (For those...
Forum Discussion
Has any aftermarket stuff been added? You could try to isolate which circuits are drawing the most power while the truck is sitting. Obviously some such as ecm etc are always going to be there but it seems you have another problem.
Just one method or tool
Just one method or tool
