MerlinTT

Hello
I have a 77 chevy c20 pickup that has some electrical problems
when you turn the key to the on position the dash lights come on, the turn signal green lights come on, if you pull the light switch out the dash lights go out the turn signal lights go dim, if you turn on right or left turn signals they blink and the other side blinks dimly.






oh the turn signal lights stay on lights on or off


I have replaced the light switch, replaced the printed circuit board on the dash panel, replace and added anther ground wire from the engine block to the firewall, I have looked for any broken or burnt wires and have not found any. Is there a ground wire to the fuse block?? if so what color is that wire?
there is no black wire


also the heater blower motor stays on when you turn the key on to
I put in a new switch for this to.
I know there has to be something I am overlooking
anyone else run across this??
Bill