Gold Lifetime Member
Join Date: Dec 1999
Location: Yorkville, Illinois USA
I think we need to back up a bit on this one. Do the blinkers and the brake lights use the same circuit, wiring, and bulb filament, or are the brake lights and signal separate on an '84? If they are the same, then all the wiring is common. Do the brake lights work? (All of them, at the proper brightness) If not, there is probably a bad ground at the tail light assy. Do the signals come on but not flash? Or not come on at all? If they come on, the flasher is bad or incorrect. (be careful here, late models have a bunch of things under the dash that "look" like turn signal flashers) If they don't come on at all, start checking the steering column, the switch, and all connectors. Do you have an aftermarket steering wheel on it? Sometimes the adapters for these can cause problems.