Train horns kill my cruise control!!

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by SemperFiServices, Aug 19, 2020.

  1. skellr

    skellr Road Train Member

    8,707
    12,026
    Jul 17, 2011
    The Village, Portmeirion
    0
    Who needs brakes when you have a train horn? Maybe not the best idea....
     
    Snailexpress Thanks this.
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. not4hire

    not4hire Road Train Member

    7,142
    26,849
    May 16, 2012
    Calgary
    0
    I read it as he is using a brake relay valve that he added, not one that was on the truck already.

     
    SemperFiServices Thanks this.
  4. skellr

    skellr Road Train Member

    8,707
    12,026
    Jul 17, 2011
    The Village, Portmeirion
    0
    I see what you mean... Now.
     
    not4hire Thanks this.
  5. not4hire

    not4hire Road Train Member

    7,142
    26,849
    May 16, 2012
    Calgary
    0
    Or maybe he uses the horn button to stop. :D
     
    Snailexpress and skellr Thank this.
  6. Heavyd

    Heavyd Road Train Member

    7,264
    5,466
    Feb 4, 2009
    0
    Weird problem for sure. I would start by disconnecting the 1/4" line to the relay valve and test it as you are driving to rule out the actual sound and vibrations created from the horn itself. Getting the codes that being logged would be good to acquire too.
     
    SemperFiServices Thanks this.
  7. SemperFiServices

    SemperFiServices Medium Load Member

    379
    228
    Jan 29, 2013
    Indianapolis, IN
    0
    Thanks everyone for the helpful responses, and for a few laughs from the smartasses lol. I'm really thinking it could be vibration tripping up a sensor, because I can hold it down a good 5 seconds before it even registers a drop in systems 1 & 2. And I only use them in absolute emergencies, I'm not the jerks you see in YouTube scaring people. I don't have codes, but again the abs and traction control both light up, which also causes the red check engine triangle to light up. I may try putting a temporary baffle in front of the horns to see if that stops it from happening. And yes, put it in a separate system to preserve my stock cheap air horn
     
    Last edited: Oct 15, 2020
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  • Draft saved Draft deleted