My nephew just completed redoing a 69. Really nice car. The problem is the headlights go up, then back down when he cranks the car. Head lights are off. He said the headlights go up at the same time. Any of you guys had this problem. Thanks for any help.

 

He may have a bad headlight actuator relay...it's between the headlights under the hood. If it's bad it will act like that. Also have him make sure all the vacuum lines are connected properly...they will do all kinds of strange things if not hooked up correctly.

 

As a matter of fact I've had this problem until this evening. I've been looking for the problem off and on now for sometime, it hasnt been a big priority with me but it is still a problem and a pain in the tail feathers.
Look for a leak, and when I say that, I'm talking about the hose connections at the relay, Tees, check valve and also the hoses going to the windshield wiper actuator. I checked the ends of the hoses by turning real easy and also pushing and or pulling the hoses on or off the nipples. If the hoses were loose or wallered out on the hose ends and I had enough hose lenght, I would cut about a 1/2" off the hose to make a better seal on the tee nipple or relay nipple.
The problem is my lights and wiper door still came up and down right after I started the car.
Tonight I pulled the car out of the garage and just happened to hear a hissing noise down by the break peddle. After finishing my main project pulled the car back into the garage and heard the hissing sound again after I shut the car off. While it was still hising for the next few seconds I wiggled the hoses that attach to the headlight manual over ride valve under the steering colume and that is where the leak has been all this time. Bad thing about this deal is I had installed the new manual overide valve a month ago and it worked during running but didnt check the hoses for a good seal on the valve.
Sorry this is so long of a responce, but it worked out for me in the long run to check everything out for leaks then check it again before going out and buying bunch of valves, actuators and relays when you may not need them, cause that is what I was getting ready to do.

 

Thanks, guys! I will along the info.

 

I had this problem before. It's a very slow vacuum leak when the car sits it drains the vacuum again very slowly and when started the vacuum builds quickly and lights go up and down. My leak happen to be the override under the dash but these are very hard to locate.