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Clunck/slipping problem while driving

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by ftn96, Feb 9, 2002.

  1. ftn96

    ftn96 1/2 ton status

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    Just got back from Wheelin with hotrodk5, jamiemac, mudstud, bigbad75k5. Everything was killer till I started driving home. Found I had a hole in my gas tank. And while driving down the road at any speed under load , flat ground or down hill its like its slipping but clunking at the same time. Kind of like it would slip and grab and then would make the sound, but you can feel the truck slip. It sounds like it is coming from the tranny or t-case.Any one have any input on this??
    Thanks

    **WARN**ing, Something winching this way comes! [​IMG]
    <a target="_blank" href=http://www.mccords.s5.com/myk5/index.htm>NashvilleK5</a>
     
  2. rain1971

    rain1971 Registered Member

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    I had that slipping and Chattering type of clunk prob in one of my blazers.

    turns out my oversized tires and lack of tranny cooler, fryed my tranny, within a month from that day of offroad, my tranny was shot, all it was were the clutch packs tho. the heat just melts the friction surface off of them.
    so if you have oversized tires and no tranny cooler and you remember intense heat from your tranny.

    your tranny will be dead in a months time :)

    hope its something else for you but that was my experience

    Theres no replacement for displacement!
    I want a big block!
     
  3. ftn96

    ftn96 1/2 ton status

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    ttt

    **WARN**ing, Something winching this way comes! [​IMG]
    <a target="_blank" href=http://www.mccords.s5.com/myk5/index.htm>NashvilleK5</a>
     
  4. rain1971

    rain1971 Registered Member

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    I just thought of one more thing it might be,,, if your diffs are mixed gears, you might not notice that on some off-roading, but on smooth ground you would notice, and on cement it'll just break stuff up.
    i dont know, just trying to think what it could be.
    I bought a truck one time and it had a 3:42 front diff and a 3:73 rear diff LOL
    I just bought it for parts tho, so wasnt to bad.

    Theres no replacement for displacement!
    I want a big block!
     
  5. ftn96

    ftn96 1/2 ton status

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    Been there done all that simple stuff. I have rebuilt the front gears to match the rear. And have driven it well over 5000 miles and no problems till today after the all day wheelin trip. It feels like the t-case is jumping out of 4 hi into neutral and back into gear. Like slipping a gear or jumping a tooth sorta like. (on the interstate at any speed over 45)

    Does this sounds like a T-case problem ot a tranny problem? The only thing I cant tell you till tomorrow morning is what the fluid level is on either since I got home from the trip. But this doesn't "feel" or "seem" like no vacum or pressure loss, or clutch slippage. It feels solid metalic in the drive train some where between the T-case and the transmission.

    **WARN**ing, Something winching this way comes! [​IMG]
    <a target="_blank" href=http://www.mccords.s5.com/myk5/index.htm>NashvilleK5</a>
     
  6. ftn96

    ftn96 1/2 ton status

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    E-mail reminder, sorry

    **WARN**ing, Something winching this way comes! [​IMG]
    <a target="_blank" href=http://www.mccords.s5.com/myk5/index.htm>NashvilleK5</a>
     
  7. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Call me when you know what the problem is...I might have the parts you need. I pm'd my number to you...or you can email me at drjv@shaw.ca

    rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
    <a target="_blank" href=http://coloradok5.com/gallery/project_T2> tRusty pics...</a>
     
  8. rain1971

    rain1971 Registered Member

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    Okay no prob, just trying to help :)

    Theres no replacement for displacement!
    I want a big block!
     
  9. ftn96

    ftn96 1/2 ton status

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    Shitter, Im getting there. I had to get the gas tank out first. With 3/4 of a tank too. [​IMG] My luck!!! [​IMG]....

    The bad thing is that everything works like a champ for x miles and them wham, clunck....Im betting its the tranny. Damn I hope so. I already have that paid for ready to go in. I should know something on the T-case by tomorrow night.

    **WARN**ing, Something winching this way comes! [​IMG]
    <a target="_blank" href=http://www.mccords.s5.com/myk5/index.htm>NashvilleK5</a>
     
  10. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Kewl...let me know.

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
    <a target="_blank" href=http://coloradok5.com/gallery/project_T2> tRusty pics...</a>
     
  11. ftn96

    ftn96 1/2 ton status

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    Anybody else with any feasable ideas?

    **WARN**ing, Something winching this way comes! [​IMG]
    <a target="_blank" href=http://www.mccords.s5.com/myk5/index.htm>NashvilleK5</a>
     
  12. CBLAZER81

    CBLAZER81 1/2 ton status

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    Make sure you check your flex plate while you have everything out!
    I helped my father in law swap the tranny in his burb last night and the flex plate was cracked to the point that it could have come completely apart.(he knocked the center out with a tap from a hammer).It kept making a loud clicking noise,sounded like a rod.

    Chuck
    81 Blazer
    <font color=red>WHY CAN'T EVERYBODY DRIVE LIKE ME?THE WORLD WOULD BE A MUCH BETTER PLACE!!!!!!!!!!</font color=red>
     
  13. ftn96

    ftn96 1/2 ton status

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    Cool. I'll keep an eye out for that!

    **WARN**ing, Something winching this way comes! [​IMG]
    <a target="_blank" href=http://www.mccords.s5.com/myk5/index.htm>NashvilleK5</a>
     
  14. ftn96

    ftn96 1/2 ton status

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    Update.... It was the pads on the range and mode forks in the transfer case. They had come off and floating around in the fluid and randomly getting in between the gears. [​IMG]
    I would have never thought these little pieces of plastic would cause that much of a problem.
    But all is good now, except for the other post on exhaust issues. Seeing as thought the manifold collector studs broke off. [​IMG] Im using this to talk the wife into letting me go ahead and get headers. [​IMG] If any of you tell her that I dont have to replace the manifolds right now, I'll hunt you down and cuss you to oblivion!!! [​IMG] Then we'll have a beer!![​IMG]

    **WARN**ing, Something winching this way comes! [​IMG]
    <a target="_blank" href=http://www.mccords.s5.com/myk5/index.htm>NashvilleK5</a>
     

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