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Transmission did i cook it?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by fright89, Feb 26, 2002.

  1. fright89

    fright89 1/2 ton status

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    I pulled off the highway on my way home and the transmission would not shift at the usual points I realy had to get the rpm's up for it to go. got some help with this the other day in a post but what i would like to know is did i cook this thing. I looked at the fluid and it was low. tonight i found that it is leeking where the person before me did some plumbing up to the cooler. The ride home was about two hours and we were doing about 85 mph most of the time. Its an 89 with a TH700-R4 ? Still shifts ok and does not seem to be slipping. Maby thursday i will have time to change the fluid and filter.
     
  2. TorkDSR

    TorkDSR 1/2 ton status

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    smell the fluid. if it smells like melting plastic tennis shoes that were worn by a homeless man in july, then its cooked. and yes that really is what it smells like [​IMG][​IMG]

    beligerence doesn't justify intelligence.
    <font color=blue>wheelers hate posers.</font color=blue>
    <font color=red>79k15/400/700r4/205/38.5</font color=red>
     
  3. Ryan B.

    Ryan B. 3/4 ton status GMOTM Winner

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    look at the fluid too. if there's lots of black stuff in the bottom of the pan that's your burnt clutches.
    If its slipping it will only get worse eventually and be toast needing a complete rebuild.[​IMG]

    [Real Men Don't Care About Gas Mileage Or Rapid Tire Wear!]<a target="_blank" href=http://coloradok5.com/gallery/albuo19>
    MY 1972 K/5</a>
    RyanB.
     
  4. DesertDueler

    DesertDueler 1/2 ton status

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    If its not slipping, and the tranny fluid is black or brown, then leave it and top it off only when its low. If you replace the fluid then the tranny will slip like crazy. Burnt fluid help the clutchs grab better because it is less slick. Trust me, we just did a tranny service on a 91 mustang with 84,000 miles on it. First tranny service and it was shifting okay, dropped the pan, and slips now.

    86Jimmy 4"&35"s,87Burb 4"&33"s,69Firebird 525 hp,and 70GTO, 65 Howard V-drive PHX,AZ<a target="_blank" href=http://www.geocities.com/modifierperformance>My toys</a>
     
  5. Thunder

    Thunder 3/4 ton status

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    I would go ahead and change the fluid. Old fluid is really hard on a 700r4.
    When you change it.Add some of this stuff it really works:<a target="_blank" href=http://www.pro-blend.com/tech4012.html>Trans cool</a> its great for hot climates.
    All of <a target="_blank" href=http://www.pro-blend.com/>Pro blends</a> products work good

    <a target="_blank" href=http://coloradok5.com/gallery/Thunders-Blaze> Blazer pics</a>

    <font color=blue>Nevada... Where the pavement ends and the west begins
     
  6. fright89

    fright89 1/2 ton status

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    to change the fluid or not to change the fluid?
     

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