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Thread: Trans Squeel

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  1. #1
    Join Date
    Nov 2005
    Location
    San Jose CA.
    Posts
    177
    Did i ask this before?
    When i do a WOT 1-2 shift i hear a squeel or squeek coming from the trans?
    I was told this was the bands and not indicating any problem or causing harm to the trans.
    Anyone else hear anything like this?
    626/762 2005 SIERRA 11.34@119.81
    My other ride is a '91 Electraglide custom.

  2. #2
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    I've heard the question before and the answer was they thought it was the fan belts and accessories losing traction.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  3. #3
    Join Date
    Jan 2005
    Location
    Conway, AR
    Posts
    1,353
    Only squeel mine makes on a WOT 1-2 shift is the tires breaking loose

    If it is infact the bands making that noise, wouldnt that mean your transmission is on its end, I dont think a tranny would make those noises if it was in good condition.

    Chris
    2009 Silverado, HPTuners, all stock.

  4. #4
    Join Date
    Nov 2005
    Location
    San Jose CA.
    Posts
    177
    Not the fan or accessory belts for sure.
    Only occurs during hard 1-2 shift. Coming from trans. Only 7500 miles on tranny!
    Bands dont slip?


    Not the fan or accessory belts for sure.
    Only occurs during hard 1-2 shift. Coming from trans. Only 7500 miles on tranny!
    Bands dont slip?

  5. #5
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Take it back to whomever built the trans and get at least a report filed with them that there is a squeel coming from the transmission so you have your bases covered. Also have them check for proper fluid pressure at shift rpm. If it's losing pressure at high rpm you could be slipping the 2nd gear band. If you paid someone good money to build you a trans, I'd sure be banging down their door if it's making strange noises.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  6. #6
    Join Date
    Nov 2005
    Location
    San Jose CA.
    Posts
    177
    <div class='quotetop'>QUOTE(RedHeartbeat &#064; Mar 1 2006, 08&#58;11 AM) [snapback]45688[/snapback]</div>
    Also have them check for proper fluid pressure at shift rpm. If it&#39;s losing pressure at high rpm you could be slipping the 2nd gear band. [/b]

    I think you&#39;re on the right track there. No one has built the trans, but i did install a shift kit and vette servo. I am also running synthetic fluid. I will take it to a trans shop to have the pressure checked first.

  7. #7
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    I have heard from a few trans shops not to run synthetic fluid in a performance transmission, it&#39;s too slick. It works great for a daily driver that doesn&#39;t get hotrodded.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  8. #8
    Join Date
    Jun 2005
    Location
    Round Rock
    Posts
    1,517
    After my tune I got the squeel. I changed to a Gatorback belt and the squeel went away. Try it, it is one way to make sure.

    Good Luck
    08 HHR SS
    Black on Black 5 spd with no options


    Pics of Christine, the '05 VHO My Car Domain Site

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