I got a 97 k1500 4x4 All of my bulbs are good and sometime my bright lights and blinker mainly on passenger side work sometimes and then don't work I replaced the blinker and brake bulb and even the circuit board you plug the bulbs into and it still dose it sometimes they work and sometimes they don't they may not work for 5 mins or 10 mins and come back or if I get out and mess with the lights… what's going on?