Menu

Headlights will not go up or down on my 1974 vette

by Walt Schwarzkopf
(Delta Alabama)

I was checking the vacuum check valve. The input from the engine reads 15 on the vacuum gauge. the larger port that goes to the tank reads 15 on the vacuum gauge with the other two hoses still connected, however the smaller port going to the light switch and the pull down switch only reads 5 on the vacuum gauge with the other two hoses connected. Is this normal?

Click here to post comments

Join in and write your own page! It's easy to do. How? Simply click here to return to C3 Corvette Ask!.





















Enjoy this page? Please pay it forward. Here's how...

Would you prefer to share this page with others by linking to it?

  1. Click on the HTML link code below.
  2. Copy and paste it, adding a note of your own, into your blog, a Web page, forums, a blog comment, your Facebook account, or anywhere that someone would find this page valuable.
Chris Trautman @ Corvette Assembly Plant 2019

About Us: Corvette Web Central | Owner Bio: Chris Trautman

Established in 2008 by Chris Trautman, Corvette Web Central quickly grew into one of the top leading Corvette enthusiast websites globally. 

"This website is a passion of mine, just as much as being a Corvette owner," says Chris.  He was frustrated trying to find information on the internet about Corvettes which was was not biased or influenced somehow. 

He has owned three Corvettes over the last twenty years and does not plan to stop owning one anytime soon.

Note: Some links on this page are part of our affiliate program and provide a small portion of proceeds to fund the administrative costs and to fund more product reviews.  We are not paid to perform the reviews or are we given any products for free.  

You might like these