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Headlight warning switch problems

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Old Jul 27, 2009 | 10:26 PM
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Default Headlight warning switch problems

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Installed new headlight warning switches on both light assemblies. Checked to ensure they are keyed properly into keyways in flange.

With the headlights up, driver side appears to be way off and not engaged. Passenger side is engaging properly. I can't figure out why they are different

Any suggestions?

Driver side


Passenger side
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Old Jul 27, 2009 | 10:47 PM
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Well one thing that stands out to me is the adjustment bolt on the driver side is in the link the wrong way. This may be restricting your travel. See the bolt head on the right hand side and the bolt end on the drivers. . . You might check this.

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Old Jul 27, 2009 | 11:08 PM
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DOuble checked that and they are both entering the proper way. One is a hex head (1/2 inch) with a flange and the other is a hex head (either 1/4 or 3/16"). They were engaged about the same amount. I can switch one of them out to match the other but I'm not sure which type is correct.
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Old Jul 27, 2009 | 11:25 PM
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The passenger side is correct and the driver’s side is backwards!

The bolt has a head like what is pictured in the passenger side and an end like what is shown on the driver’s side. So, if the hex head to the bolt is inward I was thinking this might be what is stopping the lamp from seating all the way. This bolt is what controls the adjustment level.

You might try switching the driver side and re-adjust the bolt. . . See what happens but be careful not to break off the bolt in the link. They can break and they are not fun to fix.

Willcox
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Old Jul 28, 2009 | 12:31 AM
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Thanks for the help. I'll switch the driver side bolt around tomorrow and report back.

Any secrets to removing it without breaking it, over and above penetrating oil?
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Old Jul 28, 2009 | 02:11 PM
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Maybe heat, but you'd have to be careful. Praying works best, I must not be in good upstairs the last time I did this I broke both. On the other hand, that car was pretty crusty.

Willcox
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Old Jul 28, 2009 | 02:36 PM
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I think the driver side switch is mounted from the wrong side and needs to "come in" from the right side (180 degrees rotation) to align with the "bolt" above when the light assy. closes.
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Old Jul 28, 2009 | 05:32 PM
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Looks to me like the actuator rod adjustment needs to be loosened up a little.
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Old Jul 29, 2009 | 12:01 AM
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Turned bolt around. Thanks for that. Seems like it was interfering with the final actuation of the lever that conmtacts the switch. Now switch actuates and turns off the headlights lamp in the cockpit. Thanks Willcox!

Now the drivers side is slow to close with the same lever discussed above being slow to disengage. If its the actuator lever how do I adjust that?

Gilda Radner (Emily Lattella) was right "if its not one thing its another."
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Old Jul 29, 2009 | 12:15 AM
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You've just discovered your first vacuum leak. Read the troubleshooting guide to track it down.
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Old Jul 29, 2009 | 01:19 AM
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Originally Posted by vettecrazy88

Now the drivers side is slow to close with the same lever discussed above being slow to disengage.

"
Use this troubleshooting guide to see if the different components are working correctly with no leaks. http://www.corvette-101.com/vacuum.htm The diagram is wrong so go to Willcox for the correct diagram. PG.

Last edited by Peterbuilt; Jul 29, 2009 at 01:26 AM.
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Old Jul 29, 2009 | 07:33 AM
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Originally Posted by vettecrazy88
Turned bolt around. Seems like it was interfering with the final actuation of the lever that conmtacts the switch.
That bolt is for the down adjustment to get the door level with the body . Does the bolt you turned around have a head on the other end like the passenger side ? I'm not getting how it was interferring with the last little bit of action that was needed to open fully and depress the button switch. Can you take a pic of how it looks now that you have turned the bolt around ?
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