My 1987 gmc s15 has the following problem: brake lights, turn signal, hazards work fine with headlights off. With headlights on: no brakes, weak and delayed turn signal, and sometimes both lights flash with turn signal. Running lights/reverse lights do not illuminate at all. So far I have changed all the bulbs, checked all the fuses multiple times, changed out the headlight switch and inspected the wires as well as I can see them. Because of this I obviously cannot/ should not drive at night. Now what?
Feb 15, 2006 at 2:30 PM