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6/23/12 10:36pm - Original Message: 'Headlights not opening and closing correctly'
clos370
Former Member
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Willow Spring, NC - USA

Vette(s):
1976 Greenwood Sportswagon

Joined: 6/10/2012
Posts: 6
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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6/24/12 10:34am - Reply: 'Re: Headlights not opening and closing correctly'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

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

Joined: 11/8/2003
Posts: 19447
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.

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6/25/12 1:32pm - Reply: 'Re: Headlights not opening and closing correctly'
wetvet
Standard Member
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Lake Oswego, OR - USA

Vette(s):
1972 Steel Cities Gray T Top. Original Owner, Original Paint and Interior. The running gear has been rebuilt after 240,000 miles.

Joined: 10/17/2003
Posts: 540
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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6/25/12 5:12pm - Reply: 'Re: Headlights not opening and closing correctly'
clos370
Former Member
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Willow Spring, NC - USA

Vette(s):
1976 Greenwood Sportswagon

Joined: 6/10/2012
Posts: 6
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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