Ok long story... I replaced the gas tank and one brake light would stay on and there was a small amount of smoke coming from the steering collum. I later found a pinched wire from the trailer hitch wiring harness. I repaired the wire then dissassembled the collum and repaired the white and yellow wires going to the white plastic turn signal mechinism behind the steering wheel that burnt.. Now both brake lights are lit and will not go out. I inspected the brake light switch and even disconnected it and they stayed on. Is there a relay or anything that could be stuck? I am greatfull for all and/or any help. It is a 91 s-15 jimmy 4.3 automatic 4x4. Oh and when I turn on the flashers the front turn lights come on the brake lights dim, but nothing blinks...