headlights
Team Owner
Joined: Feb 2003
Posts: 54,073
Likes: 9,398
From: Sitting in his Nowhere land Hanover Pa
2024 C2 of the Year Finalist - Unmodified
2015 C2 of Year Finalist
I am sure there is some help in the GM service manual for 1967. and I am sure someone here can tell you how to fix it
Safety Car
Joined: Feb 2006
Posts: 4,367
Likes: 59
From: FL
They aren't like the '68 up where you have miles of vacuum lines and lots of vacuum switches and actuators.
They have two switches on the dash. One is the parking light and headlight switch you pull to turn the lights on. The other is a center off switch for raising and lowering the headlight buckets. It is very similar to the power window switches.
At each headlight unit, there is a motor that runs, a gear assembly to provide gear reduction on the motor speed and to give torque to open and close the headlight unit, and there are limit switches to shut off the motor when it hits the limits to prevent tearing up the gears or burning up the motor.
To troubleshoot, check with a small voltmeter if you have power for the headlight lamp and to the motor when it is running (you need a helper for this last part).
If not, then check the items in that circuit that can stop it from working, like the switches being misaligned or broken.
They have two switches on the dash. One is the parking light and headlight switch you pull to turn the lights on. The other is a center off switch for raising and lowering the headlight buckets. It is very similar to the power window switches.
At each headlight unit, there is a motor that runs, a gear assembly to provide gear reduction on the motor speed and to give torque to open and close the headlight unit, and there are limit switches to shut off the motor when it hits the limits to prevent tearing up the gears or burning up the motor.
To troubleshoot, check with a small voltmeter if you have power for the headlight lamp and to the motor when it is running (you need a helper for this last part).
If not, then check the items in that circuit that can stop it from working, like the switches being misaligned or broken.
Team Owner
Joined: Oct 2000
Posts: 38,897
Likes: 1,926
From: Washington Michigan
