well i went out to start my truck from work wouldnt start i just put a new starter on it a month ago! so i got another one and it started then died said no bus i was like hmmmmm, went to the pass side battery and wiggled the ground i heard the lift pump click on then off. The one ground wire on that post was cracked barely touching i put a new end one and its been good since no low voltage to lift pump or no bus problems!!!!!!!