Brake light stick on
 

Brake light stick on

Started by Tikvah, August 04, 2017, 04:05:42 PM

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Tikvah

I have a dash indicator for my brake lights.  I've noticed occasionally my brake light stays on.  I can punch the pedal and it releases the light.  Where do I look for a problem?
I don't think the brake is sticking... at least I can't feel one.
1989 MCI-102 A3
DD 6V92 Turbo, Alison
Tons of stuff to learn!
Started in Cheboygan, Michigan (near the Mackinaw Bridge).  Now home is anywhere we park
http://dave-amy.com/

luvrbus

Could be just build up under the pedal at the floor check the easy stuff 1st
Life is short drink the good wine first

Zephod

Could be a dirty brake switch. Could be a maladjusted brake switch. Could even be dirt between the switch and the pedal.

Going further... are your brakes leaking air? On the work bus, after releasing the parking brake, keeping my foot on the foot brake, I let the foot brake up and air continues to hiss until I stamp on the brake again. My codriver last year left it a few seconds late and was alerted to the problem by the LAB.


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Carpenter 3800 1994 on a Navistar 1994 chassis with a DT466 and alinson transmission.

windtrader

Could this be related to the tag tire wear issue?
Don F
1976 MCI/TMC MC-8 #1286
Fully converted
Bought 2017

buswarrior

Air brake system on this coach.

Either you have air pressure in there, or the pressure switch is sticking.

Both need an intervention

happy coaching!
buswarrior
Frozen North, Greater Toronto Area
new project: 1995 MCI 102D3, Cat 3176b, Eaton Autoshift

bevans6

MCI's often control that light with a relay.  My dash light stopped working after I installed LED brake lights, they didn't draw enough current to make the relay switch.  My brake lights work fine so the switch wasn't affected.
1980 MCI MC-5C, 8V-71T from a M-110 self propelled howitzer
Allison MT-647
Tatamagouche, Nova Scotia