Best Answer
yes because it haveint been used in a long time


Yes, most likely. There's a chance that it is something mechanical, but that's a slim chance and only if they have not been used in a LONG time.

If you're not familiar with these problems, I suggest chasing the vacuum lines to listen for a hissing sound either underhood or under dashboard. Remember that the headlight switch actually is an electrical switch AND vacuum valve in-one. Additionally, there is a little black knob (backup vacuum valve) directly under the dashboard in the event that the headlight switch valve doesn't raise the lights. If neither one raises them then you have either a leak or stuck diaphragm. Good luck! -ku2002

You can buy a vacuum troubleshooting guide from Zip Corvette to help you fix the issue.

I fixed it. There are rubber devices called witches hats that go on the vacuum canisters next to the headlights. You can either change the witches hats (quite a job) or just have the vacuum canisters you can get at Ecklers.

Or you can get them at Zip and save some money, here is a link to the headlight components

where is the diaphragm located on my 1981 Corvette?
User Avatar

Wiki User

โˆ™ 2013-02-28 10:11:03
This answer is:
User Avatar
Study guides

Add your answer:

Earn +20 pts
Q: If headlights on a 1981 Corvette will not go down is it a vacuum problem?
Write your answer...
Still have questions?
magnify glass
Related questions

Why won't headlights pop up on 1981 Chevrolet Corvette?

check vacuum lines to canister,light switch,check valve, Accuators

Where are the horns on a 1981 Corvette?

Should be located just in front of the radiator near the headlights. One on each side.

How do you fix a 1981 vacuum headlights?

Hello I have same problem. If you go to this site you will find a great article on the subject.,com_frontpage/Itemid,1/ Sincerely Rick

Is there a vacuum diagram for 81 Corvette heater and air conditioning?

1981 Corvette Shop Service Repair Manual Book Engine Drivetrain Electrical GuideTry eBay for this Manual

A diagram of a 1981 Corvette 350 motor?

diagram of motor od 1981 corvette

What could be pulling the battery down in 1981 Corvette?

what could be pulling the battery down in a 1981 corvette

Can a transmission with overdrive from a 1988 carmaro work in a 1981 Corvette?

They are compatible. the only problem you may have is the shifter. If the corvette does not have overdrive on the shifter you won't be able to get the car in first gear.

How long in length is a 1981 Corvette? 178 inches.

Where can you find a vacuum diagram for a 1981 Honda cx500?

Run away not really what problem are you having with it?

Will 1973 Corvette hood fit a 1981 Corvette?

it depends on what style of 81 corvette, But a doubt it would work.

Where is the computer located in the 1981 Corvette?

There is no computer.

How much horsepower does a 1981 Corvette have?


People also asked