LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Headlights wont go down, but go up...

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Old 05-18-2008, 10:27 PM
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Default Headlights wont go down, but go up...

so wtf, im driving home tonight, turn the headlights off... and they dont do **** -_-. so i crank them down a little, try to get them to go down, yet nothing. no noise, NOTHING. i cranked them all the way down, turn them on.. BLAM they go back up.

Very odd... has anyone had this problem? know a quick fix? its too dark out and im tired.
Old 05-19-2008, 04:54 PM
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no one?
Old 05-19-2008, 05:03 PM
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my headlights started popping up randomly and go back down when i turn off the ignition. i posted that and no one knew the answer to that neither.
Old 05-19-2008, 05:28 PM
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So they automatically go up if theres power to the car, and you can crank them down if theres no power. Sounds like a short to me, somethings giving power to the motors when the car is on.

My .02
Old 05-19-2008, 07:03 PM
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More than likely its the HCM module (Headlight Control Module) fairly common failure on these cars (firebirds). You should be able to have someone test the correct values for this module.
Old 05-19-2008, 09:16 PM
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HCM I had the same problem with my 95 dumdumdumdumdum.
Old 05-19-2008, 11:06 PM
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theres a friggen computer for the damn headlights? damn. I guess when i get my hands on my shop service manual i can check it. lol

yeah, i clicked the headlights on and off about 8 times... then they finally went down
Old 05-19-2008, 11:26 PM
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Have you messed with your headlights at all before this started to happen? If worst comes to worst, just replace the motors that make the lights go up and down. I've never heard of this, but the most common thing is for the teeth on the gears to go bad and it makes a grinding noise when you put them down. I guess some genius engineer thought that a plastic gear and a metal one would work great together huh?
Old 05-19-2008, 11:45 PM
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Originally Posted by ThoR294
so wtf, im driving home tonight, turn the headlights off... and they dont do **** -_-. so i crank them down a little, try to get them to go down, yet nothing. no noise, NOTHING. i cranked them all the way down, turn them on.. BLAM they go back up.
Yep I have the same problem you do...same car too My lights come on but they only flip up or down whenever the hell they feel like it. But most of the time they don't want to come up for like 20 mins. I'm pretty sure it's the headlight control module as others have said, but I've been too lazy to try a new one, for now I just pop the hood and manually crank them

It's located on the drivers side fenderwell under where the airbox would be if we had the standard Trans Am... not the Ram Air

Looks kind of like this



If you have a buddy with a LT1 Firebird or Trans Am you could switch it out and see if that's the problem...let us know if you do.
Old 05-20-2008, 08:03 AM
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yeah i know where that is ill have to find one to swap, though



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