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95 FLD 12.7. Jakes in ddl show no data. How and where to activate the Jakes.

Discussion in 'Trucks [ Eighteen Wheelers ]' started by canadianredneck, Apr 1, 2021.

  1. Apr 1, 2021 #1
    canadianredneck

    canadianredneck Light Load Member

    228
    104
    Jul 26, 2012
    Western Arkansas
    0
    Prior owner said it had Jakes. Have the switches and power to them. Cruise and idle up both work. Engine serial number shows its a Jake brake motor. Please advise. I did try the lift the clutch and brake pedal. Heard the clicking on the clutch switch. I just purchased this truck.
     
    canadianredneck, Apr 1, 2021
    canadianredneck, Apr 1, 2021
    #1
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  3. Apr 1, 2021 #2
    BoxCarKidd

    BoxCarKidd Road Train Member

    4,188
    6,004
    Aug 26, 2014
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    Maybe check fuse - breaker and switches.
     
    BoxCarKidd, Apr 1, 2021
    BoxCarKidd, Apr 1, 2021
    #2
  4. Apr 1, 2021 #3
    AModelCat

    AModelCat Road Train Member

    27,731
    145,331
    Jul 7, 2015
    Canuckistan
    0
    Throttle pedal stuck at 1% or something silly like that?
     
    AModelCat, Apr 1, 2021
    AModelCat, Apr 1, 2021
    #3
  5. Apr 2, 2021 #4
    little cat 500

    little cat 500 Road Train Member

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    Jan 17, 2010
    Abbottstown PA
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    pull the valve cover make sure it has jakes on it
     
    little cat 500, Apr 2, 2021
    little cat 500, Apr 2, 2021
    #4
    BoxCarKidd and AModelCat Thank this.
  7. Apr 8, 2021 #5
    Smellfunny

    Smellfunny Road Train Member

    1,395
    936
    Jan 28, 2012
    South Carolina
    0
    The jakes plug in above the starter. Make sure that is plugged in. Follow the two wires from ECM on left side (looking at the computer) up the side of block. If it is plugged in there the next thing is to remove valve cover and see what is there. Test solenoids and check adjustment. If it is old truck and they used the jakes alot they could be worn out. I have seen the pistons freeze up in the jakes due to scoring in the cylinders that the pistons sit in on the jakes.
     
    Smellfunny, Apr 8, 2021
    Smellfunny, Apr 8, 2021
    #5
    BoxCarKidd Thanks this.
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