when i turn on my headlights, both them and the park lights work. when i switch to just park lights i dont have any lights. the bulbs are good and the power to the lights is fine. Any suggestions?

 

The problem is probably in the switch but I would check all of the fuses first. The headlights get their power thru a fusible link and the parking lights get power thru a fuse. I have seen parking lights draw power thru the fusible link if the switch is malfunctioning.