CORVETT POP UP LIGHTS Hi I have a 1977 corvett stingray. Do you have any ideas as to get the vacume system on the pop up lights to work correctly. They sometimes will go up, 1 at a time but very
The first thing , this system works on vacuum there are vacuum lines that run from intake to storage can or cans then to light switch inside car then back out to headlights,
i would first start by starting the car and listen for vacuum leaks, you may want to follow the vacuum line form the motor checking for splits or cracks in the lines, listen around can, this can sometimes rusts and leaks vacuum, this can or cans are intended to store vacuum and use it when needed, if they are leaking then the lights will work slow until there is enough vacuum to open them, this goes the same for a bad vacuum line and light switch, the light switch is a two part switch, one part supplies power to lights and the other part is vacuum to open lights.
you will need to listen for a vacuum leak inside the car at the switch, (headlight switch) .
Make sure all lines are good and have no leaks, you will need to make sure the hinges to lights are free and not binding up.
on Aug 12, 2012