Right rear brake light / turn signal.
- Thread starter Rocky646260
- Start date
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BroncoJoe19
Active member
I just PM'd SeaBronc and asked him to take a look at this thread.im glad it works matt!!!! i agree with joe about looking at an 84+ wiring. What is the date code on your door sticker?
joe, we still have the little issue of what that other brake switch is for
post #20
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love_my_bronco
New member
i was looking on my bronco and i didnt see anything like that picture yoou posted joe. so what ever it is it isnt in my rig. im looking it up as we speak but i still cant figure out what it is.
BroncoJoe19
Active member
Here is SeaBronc's response.
I do believe that I see a vacuum hose connected to the end of the switch. If so, it is not a brake light switch but instead it is the vacuum dump switch for the cruise control. On later models the function is duplicated by an electrical pressure switch on the master cylinder, ( the subject of a recall due to defective switches causing fires).
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Well... I went out and took a look and Darn if he isn't right!!!
Gotta hand it to the man... He knows his stuff!
I never even *heard* of a vacuum dump switch
/emoticons/[email protected] 2x" width="20" height="20" />Live and learn... two things in one day today for me.
/emoticons/[email protected] 2x" width="20" height="20" />
love_my_bronco
New member
weird i have cruise control also on my 83 but i didnt see a switch like that or vacum dump on it anywhere ill look again i might have missed it or mine could be in a diffrent spot.Here is SeaBronc's response.I do believe that I see a vacuum hose connected to the end of the switch. If so, it is not a brake light switch but instead it is the vacuum dump switch for the cruise control. On later models the function is duplicated by an electrical pressure switch on the master cylinder, ( the subject of a recall due to defective switches causing fires).
-----------------------------------------
Well... I went out and took a look and Darn if he isn't right!!!
Gotta hand it to the man... He knows his stuff!
I never even *heard* of a vacuum dump switch
Live and learn... two things in one day today for me.
BroncoJoe19
Active member
SeaBronc sent me the wiring diagram for an '83
You can see in the upper right hand corner, the vacuum line going to the switch.
The vacuum dump switch is about three inches higher on the brake pedal than the brake switch.
If you are driving with crusie on, and the brake doesn't deactiveate it, then someone may have pulled it off.
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love_my_bronco
New member
that explains alot. when i use the cruise control and stop at a red light all the sudden the eguine kicks up and trys to take off. yea i looked all over for that thing i dont have one. but when i apply the brakes a second time it does deactivate.. hmm something im gonna have to look into...
i took a look on my 85 and its not there. i do have factory cruise control. according to the 84-86 wiring diagram the it pulls right off the stop light switch lt grn wire and from there goes to the cruise amplifier. ofcourse if it was just a vac switch with no electrical connection then it wouldnt be on a wiring diagram.
love_my_bronco
New member
hmm ok that sounds alot better. hmm maybe just a bad connection. thats y it wouldnt disangage the first time i apply the brake.
almost dont with the bronco. ripped out all the carpet and Hurculined the interior. looks good and stops cancer.
BroncoJoe19
Active member
The vacuum hose that comes off of it loops around and travels through the firewall, just above the gas pedal. It then goes to this canister thing that has a cable that runs parallel to the throttle cable. I am fairly certain that this has something to do with the cruise control.
BroncoJoe19
Active member
Hi Matt,mine came with rubber flooring
but it has soft padding under that held water
i dont use the cruise on anything and really dont know if mine works. i doubt it
I noteced that you have an extra pedal in there...
It appears the cruise control with a manual trans is hooked up to that extra pedal.
Cruise (Speed) Control (Vacuum ) TSB 90-25-12
Matt LMB...
Please see the link above... cruise will not function normally when the brake lights do not work.
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BroncoJoe19
Active member
This is a bit off topic, but what the heck.
Yesterday I decided I would check my cruise control. I never used it before.
SO I pressed the on button, and LOL the switch fell INTO the steering wheel!
Gotta laugh at these old trucks, either the plastic breaks, or the metal rots.
So today I took the steering wheel cover off, dissassembled the switch, got it clicking again, and put it back in with bigger screws and washers, and took her for a spin. Son of a gun... the cruise works! I guess the switch was faulty, and the PO pushed too hard and broke the plastic tabs on the switch that hold it in place. I'm guessing it is gonna be a good day today!
joe
Yesterday I decided I would check my cruise control. I never used it before.
SO I pressed the on button, and LOL the switch fell INTO the steering wheel!
Gotta laugh at these old trucks, either the plastic breaks, or the metal rots.
So today I took the steering wheel cover off, dissassembled the switch, got it clicking again, and put it back in with bigger screws and washers, and took her for a spin. Son of a gun... the cruise works! I guess the switch was faulty, and the PO pushed too hard and broke the plastic tabs on the switch that hold it in place. I'm guessing it is gonna be a good day today!
joe
love_my_bronco
New member
wrapping up all the wires today, instaling dash. did a pretty cool idea. on the speedometer bezel. the small empty slot on the right side. i cut out the back and mounted my lil cb in the spot. woorks well and can now here voices through the dash. lol
110 decible PA speaker is all black but middle sound cone is chrome to match paint job.
tailgate haveing wireing trouble. ill put that on another thread.
new seat covers and steering wheel cover. barbed wire with skulls. whole bronco matches black and silver with camo dash
grey camo.
110 decible PA speaker is all black but middle sound cone is chrome to match paint job.
tailgate haveing wireing trouble. ill put that on another thread.
new seat covers and steering wheel cover. barbed wire with skulls. whole bronco matches black and silver with camo dash
grey camo.
love_my_bronco
New member
thanks Joe for the link i checked it out. think i got all that figured up and everything except tailgate wiring works perfect.
BroncoJoe19
Active member
Matt,
Glad I could help.
Here is a link that includes wiring diagrams for your tailgate.
http://broncozone.com/forums/index.php?s=&...ost&p=72599
Good luck!
joe
