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New Stall

This is a discussion on New Stall within the Automatic Transmission forums, part of the Drivetrain category; Hey guys, I just installed a 3400 Stall in my TA. I have driven it about 200 miles since the ...

  1. #1
    Army of 1 wooddaniel's Avatar
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    2008 G8 GT, 98 Z28 383

    New Stall

    Hey guys, I just installed a 3400 Stall in my TA. I have driven it about 200 miles since the transmission rebuild and have noticed that in 4th gear it stays at around 4000 RPMs, and overdrive is not engaging properly. When I put the stock stall back in the car works fine with no issues. Do I just need a new tune for the PCM? I had a 3600 Stall in the car before and had the car tuned immediately afterwards and did not have these issues. I was also wondering if maybe it was the speed sensor since I just put bigger wheels and tires on the back. Any input is appreciated.

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    Member 1TA LS1's Avatar
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    2001 Pontiac Trans Am WS6

    Seems like you need a tune. Why did you take out the 3600 stall?
    01 TA WS6: Volant CAI, custom ram-air baffle mod, custom borla, BMR-(SFC, LCA, LCA reloc, PH rod,TQ Arm), UMI swaybars, Eibach + Bilsteins, TTM Anth, SS brakelines, 160 deg therm, 3.73 gears, Yank 3400 stall, Yank Crsmbr, Hayden 24k, Trans Go shiftkit, ported TB + MAF...soon to be cam/heads

  3. #3
    Army of 1 wooddaniel's Avatar
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    Quote Originally Posted by 1TA LS1 View Post
    Seems like you need a tune. Why did you take out the 3600 stall?
    The Transmission lost 3rd and 4th Gear so I put a new stall in as well when I had it rebuilt.

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    Member 1TA LS1's Avatar
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    2001 Pontiac Trans Am WS6

    After I installed a 3400 stall, it drove nasty. Got it tuned and drives perfect. What kind of converter did you go with?

  5. #5
    Army of 1 wooddaniel's Avatar
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    Quote Originally Posted by 1TA LS1 View Post
    After I installed a 3400 stall, it drove nasty. Got it tuned and drives perfect. What kind of converter did you go with?
    yank again. I still have the stocker though which is what I am using until I can get a tune

  6. #6
    Member 1TA LS1's Avatar
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    2001 Pontiac Trans Am WS6

    Yank makes great stuff. Probably close to the yank stall I have. I would keep the stocker in until you're ready to do a tune again. If it's a DD, I couldn't deal with it.

  7. #7
    Army of 1 wooddaniel's Avatar
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    Quote Originally Posted by 1TA LS1 View Post
    Yank makes great stuff. Probably close to the yank stall I have. I would keep the stocker in until you're ready to do a tune again. If it's a DD, I couldn't deal with it.
    GTO is the DD. Yeah I have been happy with everything I have purchased from yank

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    Veteran 0rion's Avatar
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    sounds to me like the stall isn't locking up. Sometimes the lighter stall will trigger false misfires which will keep it unlocked. Mine would lock and then just randomly unlock. Not definite that this is your problem but something to look at.

  9. #9
    Army of 1 wooddaniel's Avatar
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    Thanks. I will have it checked out. I dunno about the converter not locking though. You may be right, but when I stomp on it it goes like it is supposed to... I dunno. I am gonna have it tuned next week.

  10. #10
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    Quote Originally Posted by wooddaniel View Post
    Thanks. I will have it checked out. I dunno about the converter not locking though. You may be right, but when I stomp on it it goes like it is supposed to... I dunno. I am gonna have it tuned next week.
    the tuning will most likely fix your issue. Just tell the tuner you've been having issues with it not locking so he can desensitize your misfires at low rpms. When you go wot the converter unlocks anyhow.

  11. #11
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    Issue is fixed.... Wasnt the tune at all, it was the speed sensor. Since I put the new wheels on there the speed sensor was off by 12MPH and it was apparently enough to make the PCM go crazy

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