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Auto trans need help!!!! ASAP

This is a discussion on Auto trans need help!!!! ASAP within the Automatic Transmission forums, part of the Drivetrain category; Got my tranny rebuilt a couple of months ago (automatic). Because third and fourth gear seized up. So they put ...

  1. #1
    Senior Member clg82's Avatar
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    2000 Trans Am

    Auto trans need help!!!! ASAP

    Got my tranny rebuilt a couple of months ago (automatic). Because third and fourth gear seized up. So they put in an upgraded clutch pac, shift kit, etc. etc. etc......now when I am at wide open throttle shifting from third and fourth, it bounces off the rev limiter and won't shift unless i get out of it and back in the throttle again. Is this a trans build issue, and should i take it back to them? Or is this a computer shifting problem. Someone please help!!! Before I take it to them to look at it again.
    2000 Arctic White trans am, ws6 hood, ws6 air box, slp lid, slp smooth bellows, slp loudmouth exhaust,shift kit, rebuilt trans, LS6 intake, 3.73 gears, Shaner S3 p/p throttle body, and a tune . SFC. C6 ZO6 rims 18" in back 17" in front. Drilled and slotted rotors.

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    Senior Member bills98ta's Avatar
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    I'd try programing the shifts down first. Do you have a programmer ?

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    Sunset Orange Metalic
    2002 Firehawk

    Mine did the same thing.Yes get the transmission shifts reprogramed

  4. #4
    Senior Member clg82's Avatar
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    Quote Originally Posted by bills98ta View Post
    I'd try programing the shifts down first. Do you have a programmer ?
    No I don't but I wish that i knew of someone in my area that did.......

    Quote Originally Posted by mghawk57 View Post
    Mine did the same thing.Yes get the transmission shifts reprogramed
    Why would the rebuild of the trans affect the computers shift points. I took it back to the guy that did it today and he insist i need to get the computer re-tuned. I also took it to the pontiac service department and they said the same thing. But I am still not 100% sure that this is the problem or am i just being too worried about it?

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    Senior Member Sleeper101's Avatar
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    Your just worrying too much LOL! Take a breathe its ok LOL!!

    Ya if you re-program the shifts it will fix your problem!

    Computers are amazing right?

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    Sunset Orange Metalic
    2002 Firehawk

    Shift kit changes fluid pressures.Just had the same problem and shift reprogram fixed it.

  7. #7
    Senior Member clg82's Avatar
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    Quote Originally Posted by mghawk57 View Post
    Shift kit changes fluid pressures.Just had the same problem and shift reprogram fixed it.
    What exactly did you re program it to? Stock shift points? or did you raise the rev limiter, or lower it? And what handheld did you use to accomplish this?

  8. #8
    Senior Member bills98ta's Avatar
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    If you pick up a cheaper hand held unit, you can program each shift point up or down. You want your 3-4 lower. Plus you can tweak the others to your satisfaction !
    And a lot of other cool stuff !!! I used the hypertech for a while, and noticed that you had to leave it in overdrive or 4'th for the shift points to work with out hitting the rev limit...

  9. #9
    Senior Member bills98ta's Avatar
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    I use the HP Tuners software now and love it !!! Takes some catching on, but it's great ! Cost around 500.00 though, and you supply the laptop !

  10. #10
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    Sunset Orange Metalic
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    I used - had someone do it with my LS1 edit - fixed right up

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