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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Mar 2008 Posts: 127 Shop Shark | | Shop Shark Joined: Mar 2008 Posts: 127 | My truck has Air over Hydraulic Brakes and the cab marker light switch (mounted on the steering column) must be pulled out in order to get the brake light to work. Does anyone know if these switches are still available? If so, where?
Last edited by rautru; 08/18/2013 7:06 PM.
Glory Bound...
| | | | | Joined: Nov 2005 Posts: 6,100 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,100 | Hy rautru, it seems to me you have some interesting wiring in your truck, the cab marker light switch should have nothing to do with the brake light switch power or output. I have never actually seen a switch mounted to the steering column, all of the marker lights I've come across have been wired into the vehicle light switch. | | | | | Joined: Mar 2008 Posts: 127 Shop Shark | | Shop Shark Joined: Mar 2008 Posts: 127 | Hey Spanky,
Look at this video. At 2 minutes 27 seconds the guy is talking about the 4-way flasher switch. My switch is pretty much the same, but it does not light up. The guy that sold me the truck said it was in case there was an air leak so that the brake light would not drain the battery. [url=http://www.youtube.com/watch?v=Fz4OsShME7E][/url]
Last edited by rautru; 08/18/2013 9:56 PM.
Glory Bound...
| | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | sounds very much something added on by the PO after he had a problem that resulted in draining the battery  your only alternative [beside rewiring the truck as original] is to take that switch to a good parts store and see if they can match it Bill | | | | | Joined: Mar 2008 Posts: 127 Shop Shark | | Shop Shark Joined: Mar 2008 Posts: 127 | Thanks, I shall try that tomorrow.
Glory Bound...
| | | | | Joined: Dec 2002 Posts: 2,549 'Bolter | | 'Bolter Joined: Dec 2002 Posts: 2,549 | i can't find the video rautu. I agree with the other guys on that switch you speak of. All marker/clearance lights I've seen on medium duty trucks have been wired into the headlight switch. Got a picture of the switch you speak of? I've seen an accessory 4 way flasher switch that lights up, when activated, but not a marker/clearance light switch. | | | | | Joined: Mar 2008 Posts: 127 Shop Shark | | Shop Shark Joined: Mar 2008 Posts: 127 | Hindsight is 20/20 and looking back I should have taken a picture. I will tomorrow.
Glory Bound...
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