jake brakes; when to use them, when not to

Discussion in 'Questions From New Drivers' started by o.m.d., Sep 21, 2010.

  1. J Man

    J Man Light Load Member

    Dec 31, 2011
    Middle of nowhere
    I drive with it on all the time unless I'm in city limits or neighborhoods in the mornings or evenings/nights where I turn it off if I don't really need it just to be nice. Most of the trucks I drive it doesn't interfere with the shifting but on one it comes on if there is any slack on the throttle so in that truck I drive with it off so it doesn't mess up my gear changes. I don't know what jake-shifting is.

    Oh, on slick roads I leave the thing off.
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  3. sw1241

    sw1241 Light Load Member

    Jun 29, 2007
    Ashtabula, Ohio
    When coming down grades like the Grapevine,I pick a gear that the truck likes and holds speed w/out using any brake, only the jake, and yes I have used it in December in BC, Yukon Territory and Alaska
    88228822 Thanks this.
  4. steve092

    steve092 Light Load Member

    Dec 7, 2015
    I use a jake brake when I have a heavy load in city if driving and a light turns yellow and I need to stop quickly. Try to avoid it most of the time tho

    On the highway if I see traffic stop immediately...

    Also down hills with a load.....

    Other than that no jake for me
    Last edited: Jul 23, 2017
    Lepton1 Thanks this.
  5. W903B

    W903B Light Load Member

    Jun 5, 2016
    I have cat acert,. most of engine you can set delay usually they come on as u took off the foot from accelerator but cat ET can change parameter to 2 sec pause or more but that was too much pause so i set at 1 sec pause and had any issues , mine are always ON and i use spike trailer brakes as well rarely use foot brakes only for complete stop
  6. W903B

    W903B Light Load Member

    Jun 5, 2016
    You can add 1 sec delay pause in ecm settings , it will not hurt or cost
  7. Boodoo302

    Boodoo302 Bobtail Member

    Apr 8, 2019
    What is 6&#37 mean I understand the 6 part as in a 6% downgrade but not the rest of it
  8. x1Heavy

    x1Heavy Road Train Member

    Mar 5, 2016
    White County, Arkansas
    Allow me is still with us, you are replying to his statement from 2010.

    I'll take a shot at this. When you have established a balance with the jacobs brake against any mountain downgrade, and I mean any. You will be able to get to the bottom without touching your brakes keeping them stone cold against the need to use them which will mean that you are in trouble.

    First learn how to run a hill without jakes. Then run em with. If everyone passes you trash talking you? Let em by. You worry about your own self going down.
  9. Jwhis

    Jwhis Heavy Load Member

    Jan 17, 2018
    I drive an auto Volvo. If bobtail or empty I leave em off. When loaded I generally drive with em on auto at cruise +2mph.
  10. king Q

    king Q Road Train Member

    Jul 26, 2010
    Johannesburg sa
    If that's what floats your boat who am I to criticise.
  11. scottied67

    scottied67 Road Train Member

    Mar 14, 2010
    california norte
    Some kind of formatting error from when the forum was transferred over to improved servers over the years. It just means 6%.
    Lepton1 and x1Heavy Thank this.
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