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Trans Help ASAP

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by TheGeneral, Nov 22, 2001.

  1. TheGeneral

    TheGeneral 1/2 ton status

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    700R. driving fine one minute at 65, next minute slowing down to stop, go to start back up, and nothing as far as power to wheels unless engine reved higher, and then no real torque, just ability to move. Stopped, checked things out, locked in four wheel drive, same thing, went through all gears and same thing. Got home by reving engine to get forward mov't. Nothing leaking, good fluid level, nothing sounded like it gave way, and everything from transfer on is good. Figure it is transmission, but what the heck. I am knew to the transmission diagnosis process and don't have a clue? Torque converter? Anyone, please help, as I need to get her running. Thanks.

    If you ain't hurt, you ain't playin' hard enough.

    The General
     
  2. CaptCrunch

    CaptCrunch 1/2 ton status

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    DOH! That is what happened when my past 700's have blown up. The one on my Blazer I pulled the pan and tons of parts in the pan [​IMG]

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
    <a target="_blank" href=http://coloradok5.com/gallery/captcrunch>http://coloradok5.com/gallery/captcrunch</a>
     
  3. Pure Insanity

    Pure Insanity 1/2 ton status

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    Drop the pan and see whats in there. There should be some stuff in the pan but not a bunch. It will look like wet dust. Use your own discression as to how much is "some" and how much is "a bunch". If you find any chunks, thats a dead give away that its toast.

    I hate to say it but it sounds like rebuild time.

    If ya can't stop.......Smile as you go under! [​IMG]
    PIC of mine from flblazers site<a target="_blank" href=http://www.flblazer.alloffroad.com/photo3.html>
    GO</a>
     
  4. newyorkin

    newyorkin 1 ton status

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    I'd think your tranny is probably blown, but you can try a fluid and filter change if there are no chunks in the pan... I've heard wacky stories of that saving trannies... Also, check the color of the fluid, it shouldn't look brown or too dark, or smell too burnt (compare it to new fluid).

    I had the same symptoms in my S10's 700 when it totally went. I drove it fine for 20 minutes at a pretty steady 60-65, then got off the exit, stopped, and coudn't get going down the road. I got that one home in 6 hours at 5 mph, motor screaming, driving the shoulder, stopping occasionally to let it all cool down. When I started it later, it sounded like stuff was scraping and clunking inside it, and there was no change in any gear. After the swap, I found the torque convertor had a nice crack running from the notch in the neck down to the base... I never opened the old tranny before selling it as a core, but the fluid was black as coal and pretty burnt smelling...

    Ratch
    <a target="_blank" href=http://k5.8m.com>k5.8m.com</a>
    Welcome to America.
     

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