so when starting my truck every 10-15 times i get a problem that i cant figure out. i put the key in to start and none of the warning lights go on and then i turn the key and it makes a click noise tries to start and then clicks again and stops. after that i will turn the key back to off and start it with no problem at all.. ive checked my battery for corrosion checked my plugs and wires and havent seen a problem like this b4 so im basically stumped, any help would be great.

 

sounds like an ign switch..its a pretty good bet