Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

4MG 3406B jake brake

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by mile marker 27, Jan 2, 2026 at 11:23 AM.

Page 2 of 2
  1. Jan 2, 2026 at 7:09 PM #11
    mile marker 27

    mile marker 27 Road Train Member

    1,356
    1,707
    Dec 4, 2019
    0
    My 7FB, will pop and sputter with the jakes on and idling but it don’t kill the engine.
     
    mile marker 27, Jan 2, 2026 at 7:09 PM
    mile marker 27, Jan 2, 2026 at 7:09 PM
    #11
    Oxbow Thanks this.
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  3. Jan 2, 2026 at 7:15 PM #12
    wore out

    wore out Numbered Classic

    16,779
    205,347
    Jun 5, 2013
    CHASIN THE DEVIL'S HERD
    0
    They need set
     
    wore out, Jan 2, 2026 at 7:15 PM
    wore out, Jan 2, 2026 at 7:15 PM
    #12
    ElmerFudpucker, mile marker 27 and Oxbow Thank this.
  4. Jan 3, 2026 at 5:53 AM #13
    mile marker 27

    mile marker 27 Road Train Member

    1,356
    1,707
    Dec 4, 2019
    0
    Does a 7FB jakes set at .080? That’s where my 4MG’s are set, with the 346’s.
     
    mile marker 27, Jan 3, 2026 at 5:53 AM
    mile marker 27, Jan 3, 2026 at 5:53 AM
    #13
    Oxbow Thanks this.
  5. Jan 3, 2026 at 8:14 AM #14
    wore out

    wore out Numbered Classic

    16,779
    205,347
    Jun 5, 2013
    CHASIN THE DEVIL'S HERD
    0
    Yes
     
    wore out, Jan 3, 2026 at 8:14 AM
    wore out, Jan 3, 2026 at 8:14 AM
    #14
    mile marker 27 and Oxbow Thank this.
  7. Jan 3, 2026 at 12:13 PM #15
    Inderjit

    Inderjit Heavy Load Member

    748
    726
    Sep 17, 2017
    0
    Some engines the oil pressure was low enough at idle that the Jake brakes would not kill the engine at idle.
    Rebuild the engine and now the Jake brake stalls the engine at idle. Tried to tell the driver that is normal but he would not believe me.
     
    Inderjit, Jan 3, 2026 at 12:13 PM
    Inderjit, Jan 3, 2026 at 12:13 PM
    #15
    Oxbow Thanks this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

    • Page 2 of 2