Best Answer

There is a vacuum line attached to the back of the headlight switch on the dash. When you pull the switch out to turn on the lights this allows vacuum to open the light doors through rubber vacuum lines. When you turn the lights off this cuts the vacuum to the lights and a spring opperates the doors and closes them.

User Avatar

Wiki User

โˆ™ 2006-05-02 14:18:39
This answer is:
User Avatar
Study guides

Add your answer:

Earn +20 pts
Q: How does the vacuum operate the headlights in a 1977 corvette?
Write your answer...
Still have questions?
magnify glass
Related questions

Why dont the lights go down on your 1977 corvette?

The headlights require a vacuum to operate down. If there is no vacuum they remain in the up position. You may have a vacuum leak such as a disconnected or broken vacuum line. I have also seen the vacuum reservoir can rotted out and unable to hold a vacuum.

Can a 1978 Corvette headlight fit on 1977 Corvette?

Yes, the headlights should be completely identical.

Where can you find a 1977 corvette vacuum headlight hose diagram?

go to

What is a 1977 Corvette?

A Corvette that was built in late 1976 up to late 1977.

Why would the headlight doors on a 1977 corvette just stop working headlights work just fine but neither one will pop up?

Your vacuum system has a leak. If both of your doors stopped working at the same time, I would check up stream from the actuators. Check out for diagrams and the parts.

How do you install seat covers on a 1977 Corvette?

what is the process for installing new seat covers in a 1977 chevrolet corvette

How do you install power window switches for a 1977 Corvette?

How do I replace the power window switch on 1977 Corvette coupe

Why does the low beam headlight not illuminate in your 1977 Corvette when you first turn the headlights on but does when you hit the high beams?

== == more than likely your dimmer switch is bad,hope that will help

What is the spark plug gap for a 1977 Corvette?

Spark plug gap for a 1977 Corvette using ACDelco R45TS is .035

Is 1977 Corvette a stingray?

No, the last year for the Corvette to be called a Stingray was in 1976.

Will the door panels off a 1976 Corvette fit a 1977 Corvette?


Do you have a diagram of a 1977 corvette horn assembly?

You can find a diagram of a 1977 Corvette horn assembly at your local library. Look in the car repair section for a Corvette repair book.

People also asked