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headlights work backwards

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Old Jul 5, 2018 | 12:02 PM
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Default headlights work backwards

hey, I rebuilt both actuators and new relays on a 76. with the headlight off they are up and when I turn them on they go down? could the vacuum line to the headlight switch be backwards? I looked over the hose connection at the headlights and they are right. Any thoughts. Thanks
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Old Jul 5, 2018 | 12:06 PM
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Since you rebuilt the vacuum actuators and relay valves, (and not the headlight switch) I'd guess the hoses are on wrong at one of the two. Switch them around and see what happens.
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Old Jul 5, 2018 | 01:21 PM
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your hose routing is wrong......start with the pull down **** under the dash and then go to the light switch

anything can be backwards any where from a Dumb Previous Owner (DPO) and your correct fix made the improperly routed hoses make the headlights not work. good job in fixng it correctly keep going the rest of the way
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Old Jul 5, 2018 | 02:41 PM
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Originally Posted by johnnied
hey, I rebuilt both actuators and new relays on a 76. with the headlight off they are up and when I turn them on they go down? could the vacuum line to the headlight switch be backward? I looked over the hose connection at the headlights and they are right. Any thoughts. Thanks
Sounds like you have the hoses on the actuators backward.
Go here:

http://www.corvette-101.com/vacuum.htm

Go to 'headlamp actuators' and click on the top right link for the correct hookup.
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