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Technical Rebuilt 700R4 won't shift to 4th

Discussion in 'The Hokey Ass Message Board' started by Scams61, Jan 7, 2017.

  1. Scams61
    Joined: Mar 5, 2013
    Posts: 4

    Scams61
    Member

    I just rebuilt my 700R4 and now it won't shift into 4th. I have had it up over 80 mph and still no shift attempts at all into 4th. I have tried two different governors and also recalibrate one and still no 4th. All other shifts are good and at the correct speed and RPM.
    I have adjusted the TV cable per spec and verified with a psi gauge that I have pressure rise as soon as I hit the gas.

    I was planning to pull the valve body and check the accumulator and valve movement again. The TCC circuit power is unplugged for now, I am really trying to verify the transmission shifts then I will work on TC lockup. But before I do just looking to see if anyone else has had this issue and found a resolution. I find a lot of posts and the never tell what they found at the end.
     
  2. falcongeorge
    Joined: Aug 26, 2010
    Posts: 18,341

    falcongeorge
    Member
    from BC

  3. blowby
    Joined: Dec 27, 2012
    Posts: 6,777

    blowby
    Member
    from Nicasio Ca

    Hey George can you turn to the page on throttle valve troubleshooting? :)

    Can't help but here's a btt.
     
  4. falcongeorge
    Joined: Aug 26, 2010
    Posts: 18,341

    falcongeorge
    Member
    from BC

    Its not laid out that way, but I could just post the entire symptom related troubleshooting section.
     

  5. Scams61
    Joined: Mar 5, 2013
    Posts: 4

    Scams61
    Member

    Hey guys thanks for the help! So I decided to go ahead and pull the 2-4 servo and inspect it before moving to the valve body. I found a cut in the 4th servo piston. Guess that's what I get for finishing my build at 2am. Good news is I just took it for a spin and all four gears now!

    Thanks again!
     
    Chucky likes this.
  6. falcongeorge
    Joined: Aug 26, 2010
    Posts: 18,341

    falcongeorge
    Member
    from BC

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