dana44· Premium Member
That isn't a turn signal problem, that is a brake light switch problem (more than likely). Imperials are more of a C body, but the brake light switch should be on a bracket along the edge the brake pedal would contact. Flashing on the front but not the back would be associated with a broken or loose wire so they need to be traced from the switches and back to the tail. They should run to the foot dimmer switch, behind that kickpanel, under the sill/along the sill of the driver side to the trunk. They are usually protected with a tin shield to the trunk, but things happen. Time for a wiring diagram, too.