Headlights?
Thread Starter
Le Mans Master
Joined: Jun 2006
Posts: 8,472
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From: Virginia
Headlights?
The head lights wont come up on this car I am buying. The dimer swith is bad will that make the lights not come up?
Its a 78.
I also was woundering about puting true dual exhaust on it. Do I still have to put 2 catalytic converters on it?
Thanks for any help you can give.
Its a 78.
I also was woundering about puting true dual exhaust on it. Do I still have to put 2 catalytic converters on it?
Thanks for any help you can give.
Le Mans Master
Joined: Mar 2001
Posts: 6,638
Likes: 287
From: Ann Arbor Michigan
On the duels, you'll have to check local laws on smog requirements. If you have annual smog checks, you'll be leaving the stock exhaust with the cat.
On the headlights, sounds like a vacuum relay valve or the light switch. As stated, does the manual over ride work? If so, that would eliminate the relay valve.
I take it you bought the car?
On the headlights, sounds like a vacuum relay valve or the light switch. As stated, does the manual over ride work? If so, that would eliminate the relay valve.
I take it you bought the car?
Last edited by Duke94; Sep 6, 2007 at 07:04 PM.
Le Mans Master
Joined: Mar 2001
Posts: 6,638
Likes: 287
From: Ann Arbor Michigan
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From: Dayton, Ohio
Thread Starter
Le Mans Master
Joined: Jun 2006
Posts: 8,472
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From: Virginia
Le Mans Master
Joined: Mar 2001
Posts: 6,638
Likes: 287
From: Ann Arbor Michigan
If you look at the vacuum circuit, there's 2 ways to get vacuum to the headlight relay valve. Either the over ride or the light switch. Dimmer switch has nothing to do with the vacuum controls.
Thread Starter
Le Mans Master
Joined: Jun 2006
Posts: 8,472
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From: Virginia
I think the light switch is bad as well. It just dont feel right when I pull it out. But that could be what it is then.
Intermediate
Joined: May 2006
Posts: 47
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From: Oak Creek WI
Mine just did the same thing. When you pull the headlight switch, the lights come on but don't pop up. It seems like the switch got easier to pull, like some came disconnected. I tried the overide as you suggested and they popped right up. Must be the headlight switch.
Thread Starter
Le Mans Master
Joined: Jun 2006
Posts: 8,472
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From: Virginia
Mine just did the same thing. When you pull the headlight switch, the lights come on but don't pop up. It seems like the switch got easier to pull, like some came disconnected. I tried the overide as you suggested and they popped right up. Must be the headlight switch.
Mine is really easy to pull.
Race Director
Joined: May 2006
Posts: 16,528
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From: Dayton, Ohio
Mine just did the same thing. When you pull the headlight switch, the lights come on but don't pop up. It seems like the switch got easier to pull, like some came disconnected. I tried the overide as you suggested and they popped right up. Must be the headlight switch.
Thread Starter
Le Mans Master
Joined: Jun 2006
Posts: 8,472
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From: Virginia
Here is a pic of the headlight valve from the inside.You can see the little tab close to the vac. ports that moves the vacuum valve.The little tab goes in a small groove in the plastic slider that the **** moves when operating the switch.Either the plastic breaks or the tab bends over.Just thought you might want to see what it looks like.
I am going to order one whats the best place to get parts for my 78? I have a Corvette America catalog are they good to deal with?
Melting Slicks
Joined: Oct 2005
Posts: 2,114
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From: upstate N.Y.
I just had the same problem on my 76. lights would come on but not pop up.I have mine out and there is a rattle in it. The first thing I noticed was it came out too easy when i pulled the switch. I am ordering from CA never had any problems and their shipping is super fast.
