headlight and wiper door
Thread Starter
5th Gear
Joined: Feb 2025
Posts: 5
Likes: 0
headlight and wiper door
i have a 69 with a few issues
1) the head light doors do not open when I pull out the head light switch, but they work when I use the over ride under the dash.
2) the wiper door opens every time I start the car
thank you in advance with any advice you can provide
1) the head light doors do not open when I pull out the head light switch, but they work when I use the over ride under the dash.
2) the wiper door opens every time I start the car
thank you in advance with any advice you can provide
Melting Slicks
Joined: Sep 2006
Posts: 2,817
Likes: 470
From: Wichita Kansas
Wiper door popping up when car is started usually indicates a vacuum leak in the system so a check of your hoses is in order. Is this something that just started? Headlights might also be a vacuum problem or maybe the light switch itself.
Obsessed
Joined: Apr 2019
Posts: 627
Likes: 394
From: Valencia, Spain
2025 C3 ('68-'73) of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
2019 C3 of Year Finalist (stock)
https://youtu.be/xoROUb3wI4A?si=tsmNeu-lRIS3GGsB
whipper door coming up when you start your Corvette is most likely the vacuum valve switch you will find underneath the base of the passenger side whipper arm. That fails a lot… When you turn off your whippers and they close the passenger side arm comes to rest on top of the vacuum valve switch depressing it which closes the whipper door. See video:
https://youtu.be/zdyPnUzDnGg?si=8sZLmM-GkmMaZD-c
If that doesn’t fix it there is another vacuum valve switch hidden attached to the passenger side wheel well, in the engine bay, that’s hard to see and get to. It looks way different from the whipper arm switch. I try to get some pics and post them to this thread later…
Last edited by Daveinspain; Jul 26, 2025 at 03:52 AM.
