IShift Problems

Discussion in 'Volvo Forum' started by bmzero, Apr 28, 2016.

  1. KB3MMX

    KB3MMX Road Train Member

    3,075
    2,595
    Dec 29, 2014
    Orrstown, PA
    0
    I figured that. How do you know what rears he has ?
    Going to 12th by 40mph depends on rear ratio.....


    OP, what is your rear end ratio ??
     
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  3. danrichardstrucking

    danrichardstrucking Bobtail Member

    8
    3
    May 2, 2016
    0
    Non-issue as of now. My problem comes on when truck gets a little heat going on in the trans. Yesterday it took 36 miles to get a fault. Today (after installing new input shaft speed sensor) it faulted at just 16 miles. somewhere there is an erratic signal screwing up my transmission.
     
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  4. realdesertkickin

    realdesertkickin Heavy Load Member

    925
    752
    Nov 18, 2013
    Tustoned Arizona
    0
    4th !! Nice....Mines stuck at 3rd, manual or auto,,,Ill always double click to get 5th right after tho, so i catch up!!!
     
  5. Boromak18

    Boromak18 Light Load Member

    62
    11
    Jan 11, 2018
    0
    My truck is shiftin 12 from 45 to 50 buth when shifts in 12 gear rpm drop on 900 yo 1000rpm and truck start to vibrates becouse of it. I dont know wath is the problem
     
  6. KB3MMX

    KB3MMX Road Train Member

    3,075
    2,595
    Dec 29, 2014
    Orrstown, PA
    0
    If it senses very light load or downhill it will shift very early
     
  7. Boromak18

    Boromak18 Light Load Member

    62
    11
    Jan 11, 2018
    0
    Which sensor is detecting the load of the trailer, can bad sensor make the truck to loose boost to, my air filter is not sacking air at all? Wath can be the problem
     
  8. KB3MMX

    KB3MMX Road Train Member

    3,075
    2,595
    Dec 29, 2014
    Orrstown, PA
    0
    Sensor for air suspension pressure. Computer looks and sees load amount.
    There is also sensor for tilt but that is different.
     
  9. Boromak18

    Boromak18 Light Load Member

    62
    11
    Jan 11, 2018
    0
    On dashboard the gauge for load is showing the load in psi
     
  10. Boromak18

    Boromak18 Light Load Member

    62
    11
    Jan 11, 2018
    0
    Transmission today was not shifting down properly from 11 directly to N and when up shifting rpm drop low. Wath can be the problem
     
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