rosco281 Posted April 21, 2015 Share Posted April 21, 2015 99 rd688sI can't find the brake light switchI've changed to one under the dashBut c ant find the other oneSomeone please help!!!! Quote Link to comment https://www.bigmacktrucks.com/topic/39755-new-guy-here-need-help/ Share on other sites More sharing options...
hatcity Posted April 21, 2015 Share Posted April 21, 2015 trolley brake lever? 1 Quote Success is only a stones throw away.................................................................for a Palestinian Link to comment https://www.bigmacktrucks.com/topic/39755-new-guy-here-need-help/#findComment-287384 Share on other sites More sharing options...
rosco281 Posted April 21, 2015 Author Share Posted April 21, 2015 That's the one on the columnn? No I think it's somewhere else Quote Link to comment https://www.bigmacktrucks.com/topic/39755-new-guy-here-need-help/#findComment-287386 Share on other sites More sharing options...
mowerman Posted April 21, 2015 Share Posted April 21, 2015 welcome,,and good luck..bob Quote Link to comment https://www.bigmacktrucks.com/topic/39755-new-guy-here-need-help/#findComment-287389 Share on other sites More sharing options...
hatcity Posted April 21, 2015 Share Posted April 21, 2015 Are the brake lites not working? could be broken wiredid you test the switch? for power in/out?bad ground? Quote Success is only a stones throw away.................................................................for a Palestinian Link to comment https://www.bigmacktrucks.com/topic/39755-new-guy-here-need-help/#findComment-287395 Share on other sites More sharing options...
Joseph Moody Jr Posted April 21, 2015 Share Posted April 21, 2015 Welcome Quote Link to comment https://www.bigmacktrucks.com/topic/39755-new-guy-here-need-help/#findComment-287400 Share on other sites More sharing options...
slingblade Posted April 21, 2015 Share Posted April 21, 2015 theres an RD wiring diagram on this site,ive used it to fix my truck,look under the cab,drivers side near the foot valve,should be another brake switch there, 1 Quote Link to comment https://www.bigmacktrucks.com/topic/39755-new-guy-here-need-help/#findComment-287404 Share on other sites More sharing options...
rosco281 Posted April 21, 2015 Author Share Posted April 21, 2015 Hatcitythey stay lit as if I'm riding the brake I changed the other one under the dashBut can't locate the brake light switchSlingPlayer I bought a diagram from mack. But it don't show actual locationThanks guys! Quote Link to comment https://www.bigmacktrucks.com/topic/39755-new-guy-here-need-help/#findComment-287409 Share on other sites More sharing options...
felicello122 Posted April 21, 2015 Share Posted April 21, 2015 There is one on the firewall on the left side half way down Quote Link to comment https://www.bigmacktrucks.com/topic/39755-new-guy-here-need-help/#findComment-287413 Share on other sites More sharing options...
GreenGiant2 Posted April 21, 2015 Share Posted April 21, 2015 brake pedal stuck down? Quote We the unwilling, Lead by the unqualified, are doing the impossible, for the ungrateful. Link to comment https://www.bigmacktrucks.com/topic/39755-new-guy-here-need-help/#findComment-287464 Share on other sites More sharing options...
ranchhopper Posted April 22, 2015 Share Posted April 22, 2015 brake pedal stuck down?Had the same problem on the RS a little corrosion on the pin holding the brake pedal on wasn't letting it come up all the way just enough to keep the lights on. Quote Link to comment https://www.bigmacktrucks.com/topic/39755-new-guy-here-need-help/#findComment-287491 Share on other sites More sharing options...
dallinoman Posted July 25, 2021 Share Posted July 25, 2021 On 4/20/2015 at 10:39 PM, felicello122 said: There is one on the firewall on the left side half way down You have to go to the passenger side to see it but it’s right in the middle of the fire wall right below the thermo expansion valve 1 Quote Link to comment https://www.bigmacktrucks.com/topic/39755-new-guy-here-need-help/#findComment-477352 Share on other sites More sharing options...
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