C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Sep 11, 2008 | 04:51 PM
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Default just bought new project

i just bought a 75 for my wife and i need a owners guide i guess. what is the vacumun switch under the steering column and i think the other switch is to reset the trip odm. can anyone help me or atleast ponit me in the right direction.

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Old Sep 11, 2008 | 05:07 PM
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Welcome! I'm new as of May myself. I can answer this one though.

The switch will cut off the vacuum to the headlights. It comes in handy if they quit going up and down. That way if you have an issue with the vacuum to the lights, once you get them in the up position they won't go back down and you have lights.
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Old Sep 11, 2008 | 05:43 PM
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Or you can pull down on the switch, with the car running, and the lights will come up for cleaning with out running your battery down.
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