haus4350 Posted August 29, 2009 Share Posted August 29, 2009 (edited) new to me 99 ch613. 1st truck purchase also...i have an indicator light on the dash that says brake air but no buzzer....air pressure builds up fine though....also the brake lights stays on all the time...i am guessing the low air pressure sensor is bad? blown fuse?where would that sensor be?any other tips for a rookie?thanks. Edited August 29, 2009 by king cotton Quote Link to comment https://www.bigmacktrucks.com/topic/10489-brake-air-indicator-light-and-brake-lights-staying-on/ Share on other sites More sharing options...
ThaddeusW Posted August 29, 2009 Share Posted August 29, 2009 Hi,The brake light switch might in in one of two places. First it might be on/near the foot valve or sometimes it might be screwed into the tractor protection valve.There are two low pressure warning light sensors, one on the primary reservoir and one of the secondary reservoir if one goes low it trips the buzzer and light. Quote -Thad What America needs is less bull and more Bulldog! Link to comment https://www.bigmacktrucks.com/topic/10489-brake-air-indicator-light-and-brake-lights-staying-on/#findComment-39745 Share on other sites More sharing options...
haus4350 Posted August 31, 2009 Author Share Posted August 31, 2009 I cranked up truck today and it was also saying electronic malfunction and shutdown engine.....after awhile all the lights went out and brake lights went off...as off right now everything is functioning....hope i dont have a loose or naked wire somewhere to trace down...yikes!thanks. Quote Link to comment https://www.bigmacktrucks.com/topic/10489-brake-air-indicator-light-and-brake-lights-staying-on/#findComment-39773 Share on other sites More sharing options...
haus4350 Posted September 2, 2009 Author Share Posted September 2, 2009 it was the low pressure air switch to the right of the steering column...there was 3 of these...was told there was supposed to be 2....replaced all 3 @ $12 a piece....one of mine had rust and water packed in it.....i feel alot better. Quote Link to comment https://www.bigmacktrucks.com/topic/10489-brake-air-indicator-light-and-brake-lights-staying-on/#findComment-39852 Share on other sites More sharing options...
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