no pattern to this problem when it pops up there is nothing when i turn the key no sol. clicking no attempt at turning over nothing. Then without fixing anything it starts normally after 6-15 trys. i have cleaned battery connections,ground connections at the engine,pulled the ignition switch & checked continuity,pulled off wires at the sol. on starter cleaned. voltage at both batteries 13.5-13.8 . any suggestions would be helpful this has been going on for 2 months thanx