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Tranny Downshift Prolbem.

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by OL14BLAZ, Sep 13, 2002.

  1. OL14BLAZ

    OL14BLAZ 1/2 ton status

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    My 89K5 has about 13,000 miles on the rebuilt trans. I bought the blazer about month and half ago from an guy in AL. He had the trans rebuilt by a local shop. The prolbem is when I take off and it shifts into 2nd gear and I let off the gas it down shifts really hard (shakes the whole blazer) and it does this when I stop really quick and shifting into reverse sometimes.

    What could cause this prolbem? The fluid is full and really clean.

    Any help would be appreciated.

    Eric.

    89K5/14FF/D60/2-1/2"Superlift/1"ORD BD/More mods coming!!
     
  2. Calclips

    Calclips 1/2 ton status

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    Have you adjusted the TV cable? I'm assuming that because it is an 89 it has a 700r4 in it, which relys on the tv cable to control main line pressure in the tranny. This web page has a lot of good info about 700s, it may contain how to properly adjust the tv cable.
     
  3. OL14BLAZ

    OL14BLAZ 1/2 ton status

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    Thanks for the info and website! Hopefully this will fix
    my prolbem. I think it will.

    Thanks Again!!

    Eric.
     
  4. Calclips

    Calclips 1/2 ton status

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    If its a TV problem, or maybe even something in the valve body, that site can help you diagnose and fix it. Your welcome and good luck!
     
  5. Blue85

    Blue85 Troll Premium Member

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    After you let off the gas is downshifts or upshifts?
     
  6. OL14BLAZ

    OL14BLAZ 1/2 ton status

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    It downshifts after letting off the gas.

    Eric.
     

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