I had the alternator bench tested and it passed and reinstalled to be sure everything was correct cause I noticed the alternator flexing at the bracket. When it first starts up it runs fine I can rev it up and all even start to drive if I shot from N to D or R, but as soon as I touch the brake or hit a small bump it shuts down and my dash goes dark sometimes it resets when I cycle the key off and on and sometimes it stays black until I unhook the battery and rehook it up, then it works fine again until I go to move it and touch the break