Headlight dimmer
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Junior Member
Joined: Apr 2014
Posts: 17
Likes: 0
From: Benton, WI
Car: 1991 Z/28 G-92
Engine: 305tpi
Transmission: T5
Axle/Gears: 3.42
Headlight dimmer
Hey guys I have a 91 Z and I think the headlight dimmer switch might be broken. I can't get the lights to switch from low beam to high beam. How do I get into the steering column?
Joined: Sep 2005
Posts: 27,864
Likes: 2,427
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Headlight dimmer
You don't have to.
The dimmer switch is on top of the column, down at the bottom, just a few inches above where it goes through the firewall. Those almost never break. Most likely all you need to do is adjust it: loosen its mounting screws, slide it up toward the steering wheel ¼" or so, and re-tighten the screws.
The dimmer switch is on top of the column, down at the bottom, just a few inches above where it goes through the firewall. Those almost never break. Most likely all you need to do is adjust it: loosen its mounting screws, slide it up toward the steering wheel ¼" or so, and re-tighten the screws.
Senior Member
iTrader: (2)
Joined: Aug 2014
Posts: 575
Likes: 0
From: Fort Collins, CO
Car: 1991 Firebird Formula
Engine: 5.7L TPI
Transmission: 700r4
Axle/Gears: 3.23
Re: Headlight dimmer
If you have a tilt steering wheel, try pulling down on it then using the switch. A lot of times the tilt steering wheels wear the housing that holds the pin out, allowing for enough slop to not properly actuate the dimmer switch.
Thread Starter
Junior Member
Joined: Apr 2014
Posts: 17
Likes: 0
From: Benton, WI
Car: 1991 Z/28 G-92
Engine: 305tpi
Transmission: T5
Axle/Gears: 3.42
Re: Headlight dimmer
Yup the housing is wore out it has a little play and when i pull down a little bit it clicks on and off
Joined: Jun 2009
Posts: 832
Likes: 1
From: Lawrence KS
Car: 91 z28
Engine: LS1
Transmission: 4L60e
Axle/Gears: 10 bolt 3.42
Re: Headlight dimmer
Joined: Aug 2011
Posts: 661
Likes: 7
From: Texas
Car: 91 Firebird/88 Firebird/91 Formula
Engine: V6 3.1/V8 5.0/V8 5.0
Transmission: 4L60/700R4/4L60
Axle/Gears: 3.23/2.73/2.73
Re: Headlight dimmer
My dimmer switch rod had worn a hole the base of the housing on my Formula. I clipped off an electrical butt connector that was bigger than the hole and placed it at the end of my dimmer rod so that it wouldn't push through. Been working fine ever since.
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