hello,
I had a simular problem once in my 68
el camino. i would put on the flasher and no flash. even changed it too still no flash.just solid light.i think what the problem was is that there was bad ground
make sure that the lights are bolted on secureley to the bumpers to make good contact. may require some cleaning.they get dirty or loose and then you dont have a good groung any more check that out. hope this helps . Edgar
I had a simular problem once in my 68
el camino. i would put on the flasher and no flash. even changed it too still no flash.just solid light.i think what the problem was is that there was bad ground
make sure that the lights are bolted on secureley to the bumpers to make good contact. may require some cleaning.they get dirty or loose and then you dont have a good groung any more check that out. hope this helps . Edgar