Brake lights not working

[powerram250c]

All other lights work the way they should, just not the brake lights. Is the pressure switch for the lights down by the air pack? Thank you!

 

[porkysplace]

Post #10 of this thread has a picture of the switch , it also has info on testing the switch .
[h=1]brake lights not working[/h]FYI this thread is listed at the bottom of this page under similar threads .

 

[powerram250c]

Cool, alrighty, thank you for sharing this with me.

 

[porkysplace]

There was also a upgrade to a air operated switch so it may be in the air line at the air-pack . If it still has the hydraulic operated switch you should probably upgrade to the air switch. Erik's Military Surplus has the kits.
http://www.eriksmilitarysurplus.com/brliairopswu.html

A thread on the upgrade.
[h=1]Updated brake switch[/h]

 

[porkysplace]

So did you get your brake lights working ? It makes the thread useful to others when you post the solution to your problem when fixed.

 

[powerram250c]

Not yet. The outdoor shop finally warmed up a bit to start working on it again. I'll keep you guys posted.

 

[EtherBop]

I have similar problem. Serial, hazards, and turn signals operating normally. Quick fix seemed to be to replace the stoplight switch. Did that yesterday, but no change. Could someone offer some guidance?

 

[cattlerepairman]

I have similar problem. Serial, hazards, and turn signals operating normally. Quick fix seemed to be to replace the stoplight switch. Did that yesterday, but no change. Could someone offer some guidance?

With the light switch set to power the lights, does connecting the two wires at the switch result in the lights coming on? If not, you may have a wiring issue. You did check the lightbulbs?

 

[EtherBop]

With the light switch set to power the lights, does connecting the two wires at the switch result in the lights coming on? If not, you may have a wiring issue. You did check the lightbulbs?

Thanks for the guidance - I will check both at next earliest opportunity and report back. Appreciate the help!

 

[powerram250c]

Okay so finally got around to fixing my brake light problem. Turned out must have just been the diaphragm that runs the contacts on the other side. I took shop air (150 psi) and pressurized the switch and had it hooked up to my multimeter. Reinstalled onto truck and plumbed everything back together, now I have brake lights! Thanks for all the help.