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cat d250e

Discussion in 'Other Earthmoving Equipment' started by robmcallan, Jun 28, 2018.

  1. robmcallan

    robmcallan Member

    Joined:
    Jan 14, 2016
    Messages:
    21
    Location:
    vancouver island
    having shifting issues the truck will only shift into any higher gears then 1st when only going down hill. in automatic and when trying to manually trying to shift gears. but am able to manually shift gears in reverse and they work proper. There is no codes coming up on the TCU. leaning towards a speed sensor but was hoping to get a code of some sort. or does anyone know what kind of rpms the trans is looking for before it wants to shift?
     
  2. Mark250

    Mark250 Senior Member

    Joined:
    Aug 30, 2015
    Messages:
    785
    Occupation:
    heavy equipment technician
    Location:
    victoria,Australia
    Hi what is your serial number?
    Are you saying you have reverse gear and first gear only but no upshift?
    also are you saying the machine will upshift when going down a hill?
    Have you checked your screens for contamination?
    have you done any other checks ? electrical .hydraulic etc
    Any recent work done on the machine?
     
  3. laycobeau

    laycobeau Well-Known Member

    Joined:
    Jul 8, 2013
    Messages:
    149
    Occupation:
    Lead electronic technician
    Location:
    Tulsa Ok. beau.bowlan@lei-corp.com
    Does your rpm reed right. It should upshift at 2100 rpm or above. who makes the TCU?
     
  4. robmcallan

    robmcallan Member

    Joined:
    Jan 14, 2016
    Messages:
    21
    Location:
    vancouver island
    5tn00165 is the serial number. And yes I have reverse just no upshift in forward unless going down hill. Then the truck will shift. I took the screen out and didn't see much for sign of a grenaded trany. I have not done any pressure checks yet. We have just got the truck from the auction and don't know any of its history.
     
  5. Mark250

    Mark250 Senior Member

    Joined:
    Aug 30, 2015
    Messages:
    785
    Occupation:
    heavy equipment technician
    Location:
    victoria,Australia
    I would be doing a complete check of the transmission now that it has come from auction
    Mark
     
  6. Vetech63

    Vetech63 Senior Member

    Joined:
    Aug 10, 2016
    Messages:
    658
    Location:
    Oklahoma
    Auction?o_O
     
  7. Dave Neubert

    Dave Neubert Well-Known Member

    Joined:
    Jul 19, 2018
    Messages:
    148
    Location:
    Monroe NC
    Ever find your issue Iam having the same problem
     
  8. robmcallan

    robmcallan Member

    Joined:
    Jan 14, 2016
    Messages:
    21
    Location:
    vancouver island
    no I never did get a chance to look into it further due to a week later I started a new job for another company but I will see if they did figure it out yet.