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International 9400 bouncing on start

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by ninehk, Jan 2, 2021.

  1. Jan 2, 2021 #1
    ninehk

    ninehk Bobtail Member

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    Jun 10, 2020
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    My international 9400 is bouncing on starting from stops after I replaced the cab height valve and air bags. Should I find a good adjustment for it or could the problem be elsewhere
     
    ninehk, Jan 2, 2021
    ninehk, Jan 2, 2021
    #1
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  3. Jan 2, 2021 #2
    AModelCat

    AModelCat Road Train Member

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    Canuckistan
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    Did you change the shocks too?

    How are the front cab mounts?
     
    AModelCat, Jan 2, 2021
    AModelCat, Jan 2, 2021
    #2
  4. Jan 3, 2021 #3
    baha

    baha Road Train Member

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    ga
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    You will need to lower the air bags a bit at a time with the adj. rod, till you get it like it was before you put all the new parts on it?
     
    baha, Jan 3, 2021
    baha, Jan 3, 2021
    #3
  5. Jan 3, 2021 #4
    201

    201 Road Train Member

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    high plains colorado
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    Flywheel is warped.
     
    201, Jan 3, 2021
    201, Jan 3, 2021
    #4
  7. Jan 3, 2021 #5
    ninehk

    ninehk Bobtail Member

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    Jun 10, 2020
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    Front cab mounts are about 4 months old. I’m going to lower it little by little see if that helps I’m hoping it isn’t the clutch
     
    ninehk, Jan 3, 2021
    ninehk, Jan 3, 2021
    #5
  8. Jan 3, 2021 #6
    uncleal13

    uncleal13 Road Train Member

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    Start in a lower gear
     
    uncleal13, Jan 3, 2021
    uncleal13, Jan 3, 2021
    #6
    Heavyd and AModelCat Thank this.
  9. Jan 3, 2021 #7
    ninehk

    ninehk Bobtail Member

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    3
    Jun 10, 2020
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    It does the same thing wether I start in first second or third
     
    ninehk, Jan 3, 2021
    ninehk, Jan 3, 2021
    #7
    uncleal13 Thanks this.
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