Headlights work but all other lights are not working. AC and heating not working.Where to look for problem?
Have you checked the fuse box for bad fuses? I would start there. Did everything quit all at once?
Fuse box was checked and all bad fuses replaced. But the issue didn't go away. It was intermittent for a while and eventually all cut out.
Search Mercury Grand Marquis Questions
Mercury Grand Marquis Experts
Related Models For Sale