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Tranny Slipping Still - Now What

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 1986Blazer, Oct 24, 2001.

  1. 1986Blazer

    1986Blazer 1/2 ton status

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    OK, I just replaced the TV cable - damn I hate the hook end in the tranny - must have been a Ford engineer on loan to GM when they designed that damn thing!

    It shifts GREAT now. The 1-2 is almost so smooth you can not feel it. The 2-3 is great also. BUT!!!!!!

    When it is in 2nd and I floor it, the tranny slips ALOT and slowly accellerates. The gear does not seem to hold. What is this??????

    The new TV cable has an adjustable length cable. Without messing with the spring loaded adjuster, will adjusting the length of the steel cable affect the performance???? Please, any assistance will be great. I have already checked 700R4.com

    Thanks

    <a target="_blank" href=http://www.geocities.com/keywestk5/KeyWestK5.html>http://www.geocities.com/keywestk5/KeyWestK5.html</a>
    So I says to him, I said, "get your own monkey."
    1986 K5, 350 GM Crate, 700R4, NP208
     
  2. dyeager535

    dyeager535 1 ton status Premium Member

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    You replaced it? Was the other one broken? Buddy that owns a tranny shop told me that he has had bad luck with the "universal" cables, in that the adjustable part has a tendency to adjust itself. FWIW. If it works, it works. I don't believe adjusting the TV cable will solve that problem...sounds like you have it a bit too loose for MY tastes, I like to feel at least just a bump going into each gear....the lighter the apply (gear change) the lighter the "pressure" holding the clutches at the shift.

    Anywys, if you have a "flare" when you floor it in 2nd, I believe the most likely cause would be the band is fried, if not the drum as well. I'm going to leave it at that, and let someone that works on trannies take over.



    Dorian
    My tech/links page: <a target="_blank" href=http://www.dorianyeager.com/index2.html>www.dorianyeager.com/index2.html</a>
    Why insist on counting when the ring gear has the tooth counts stamped in?
     
  3. bee32

    bee32 1/2 ton status

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    I am not a tranny guru but have worked on a few and I would have to agree with Dorian.

    Brian
    83 K-5 4" on 35's
     
  4. Leadfoot

    Leadfoot 1/2 ton status Premium Member

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    I have been told the 1-2 shift should be slightly harder than all the rest. Also kickdown should happen almost instantaneously. I would say that it is hopefully a cable adjusted too far forward or if not it could be alot worse and you have a band going out (as stated earlier).

    See my rig at <a target="_blank" href=http://coloradok5.com/gallery/Leadfoot>http://coloradok5.com/gallery/Leadfoot</a>
     
  5. 1986Blazer

    1986Blazer 1/2 ton status

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    I've been screwing with the new TV cable and the slipping varies with the cable adjustment. This leads me to believe the problem may be finding the correct adjustment. I will keep checking but please continue to let me know what you may think. The tranny is a GM Crate 700R4 and only has about 6,000 miles on it.

    <a target="_blank" href=http://www.geocities.com/keywestk5/KeyWestK5.html>http://www.geocities.com/keywestk5/KeyWestK5.html</a>
    So I says to him, I said, "get your own monkey."
    1986 K5, 350 GM Crate, 700R4, NP208
     

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