headlight vacuum issues
Thread Starter
2nd Gear
Joined: Mar 2012
Posts: 2
Likes: 0
headlight vacuum issues
I recently bought a 79 corvette. I am having problems getting the headlights to work correctly. I replaced the relays, actuators and the headlight switch. I replaced a couple of lines. The headlights pop up just fine when I pull the over ride switch. Does this sound like a vacuum leak. I have not replaced the filter or the check valve. How does either the check valve or the filter help in the process. I want to fix this problem and the backup ligth switch so the car passes inspection. I need some advice.
Le Mans Master
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!
This should help you out:
http://forums.corvetteforum.com/c3-t...tem-works.html
Keep the shiny side up!
Scott
http://forums.corvetteforum.com/c3-t...tem-works.html
Keep the shiny side up!
Scott
Racer
Joined: Mar 2011
Posts: 480
Likes: 42
From: Los Angeles CA
The Diagram is a great starting point. Check each hose individually to the diagram. My best recommendation is that relay to the actuators are mixed up. If they used the correct color coded hoses this is easy to fix using the diagram. Red strip on the top of the relays to the engine side of the actuator. Green strip on the bottom of the relays to the front side (head light side) actuator. But use the above diagram. It is very through. Good luck.
Last edited by Frank_Nesta; Apr 9, 2012 at 12:12 AM. Reason: After thought
Racer
Joined: Feb 2007
Posts: 271
Likes: 25
From: Buena Vista Colorado
That's good news. Sounds like your actuators and relays are working well and your hose connections to those components are good.
No. I suspect the hose connections on your headlight switch are reversed.
They don't help in the process you're asking about.
No. I suspect the hose connections on your headlight switch are reversed.
They don't help in the process you're asking about.
