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Thread: Powerglide lazy shift

  1. #1

    Powerglide lazy shift

    I see another post where someone has a car that hits the rev limiter between shifts. I understand his problem, I have seen the same thing> My powerglide revvs up at the shift enough to actually unload the chassis on a run. I have replace the trans with my spare trans and it works great now. Anybody ever cracked this nut??? Only one guy answered the question saying that it might have a warped valve body. Could the front pump be getting weak?? The fluid isnt burned and the band and clutches look fine. So I am thinking it is a pressure problem. I just need some direction! Thanks

  2. #2
    Senior Member RACING JUNKIE
    Join Date
    May 2003
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    Coldwater, MI
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    pressure issue for sure, what valve body ?
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    419-280-1406
    Lanning Electric
    Complete Drag Car Wiring
    APD Race Engines
    www.apdracing.com

  3. #3
    Its a Hipster,

  4. #4
    Senior Member RACING JUNKIE
    Join Date
    May 2003
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    I've had a hipster do the samething before, did you get a chance to check line pressure before taking it out ?
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    419-280-1406
    Lanning Electric
    Complete Drag Car Wiring
    APD Race Engines
    www.apdracing.com

  5. #5
    No I didnt but I will do the work, how do I check it? I know about the 1/8 inch pipe plug on the side of the servo cover. Do you just check it at a idle??

  6. #6
    Senior Member RACING JUNKIE jmarksdragster's Avatar
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    Jul 2007
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    Florida
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    635
    Pressure tap for low and high is the servo cover plug, a brake VB should have at least 200 psi. Check your band adjustment, 3 1/2 to 4 turns out will work.
    Mark Whitener
    http://racingfuelsystems.myfunforum.org
    __________

    Good work isn't cheap, and cheap work can't be good.

  7. #7
    Senior Member EXPERT BUILDER
    Join Date
    Aug 2005
    Location
    Tell City, IN
    Posts
    356
    It can be the pressure relief valve in the valvebody. I had this hsppen as well but with a BTE valvebody. Works fine after cleaning it out and stretching the spring just a little.


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