bjs70vette

Can any one tell me why my 70 vette,when you start it up the wiper door and the headlights open for a couple seconds and then close.

0Willcox Corvette

Yes, your vacuum is bleeding off the system and until it builds back up the headlamps and wiper door pop open.

There have been tons of threads on this recently! Plus we have the schematics on our web site. You should upload this before the end of the month, they are free to all right now! http://willcoxcorvette.com/repairand...lp.php?hID=280

Search the archives but here is one of the better threads on the entire system.

http://forums.corvetteforum.com/c3-t...-start-up.html

Easy Mike

Replace the check valve between the manifold and the reserve tank.

SoCalErv

I do not know how to attach a file but I have a great troubleshooting article that will take you through testing all components of the vacuum system.

Tell me how to attach it or send me a pm with your email and I will send it to you.