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Headlights not opening and closing correctly

Forum: C3 Electrical, Body and Interior

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Headlights not opening and closing correctly

Posted: 6/23/12 7:36pmMessage 1 of 4
c
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Willow Spring, NC - USA
Joined: 6/10/2012
Posts: 6
Vette(s): 1976 Greenwood Sportswagon
Just replaced the vacuum cannisters on my 1976 C3, and the only only way to get the headlights to raise or lower is to to take the small tube loose running to the vacuum relay accuator valves.  If I turn the lights on, and take the tube loose than the lights open as they should. The same thing happens when I turn them off.  Does this mean that the accuator valves are bad???...or did I hook up the vacuum cannisters wrong?

Thanks
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Re: Headlights not opening and closing correctly

Posted: 6/24/12 7:34amMessage 2 of 4
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 22715
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
You may simply have the hoses connected backwards. Swap the hoses on the actuators, and see if that corrects the problem. If not, I can send you some troubleshooting info.

Joel Adams
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Re: Headlights not opening and closing correctly

Posted: 6/25/12 10:32amMessage 3 of 4
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Lake Oswego, OR - USA
Joined: 10/17/2003
Posts: 567
Vette(s): 1972 Steel Cities Gray T Top. Original Owner, Original Paint and Interior. The running gear has been rebuilt. only 250,000 miles on the clock..
Did you install a new filter and check valve? That may help also. These are located near the distributor and or master cylinder.

 
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Re: Headlights not opening and closing correctly

Posted: 6/25/12 2:12pmMessage 4 of 4
c
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Willow Spring, NC - USA
Joined: 6/10/2012
Posts: 6
Vette(s): 1976 Greenwood Sportswagon
Ok guys...thanks for the info. Can I find the check valve and filter at a l ocal auto parts store?
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