Have problems with 2000 chevy silerado 2500 whenever you hit a bump in the road the battery light comes on & all gauges go dead for a few seconds & come back on, will also do it at a fast/hard acceleration. Could it possibly be the mega fuse & where is it located? Thanks for the help

 

I would check all the grounds both chassis and seperate grounds to the dash components. If it was the fuse or fuses it most likely would'nt be intermintdent but would'nt work at all.