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Thread: 99 tahoe 4x4 0411 swap

  1. #1
    Tuner in Training
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    Jan 2019
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    99 tahoe 4x4 0411 swap

    I have a 99 tahoe 4x4 that i swapped a 0411 into and had a tuning company tune for me. I built the engine myself with higher compression and a cam so it had to be tuned anyway. I just got a wideband installed and its running just a little bit lean and the transmission shifting sucks. Its so bad the converter locks up at 35mph under light load. It shifts to od at about 30mph. I believe some of that is that i did not run the 4 wires from the range switch like i was supposed to. I just ordered hptuners to try and fix these issues. Is there a tune in the repository for 99 tahoe 4x4 5.7 0411 swap? Since i do not have my tuning stuff yet i cannot look. Or will i have to cobble up a tune with this os and this engine and transmission segment and add in the transfer case segment? Tia.

  2. #2
    Tuner in Training
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    Jan 2019
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    Anybody?

  3. #3
    Tuner
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    Dec 2018
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    Washington State
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    182
    Try the bluecat trans tuner

  4. #4
    Tuner in Training
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    Nov 2023
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    Quote Originally Posted by Luke22493 View Post
    I have a 99 tahoe 4x4 that i swapped a 0411 into and had a tuning company tune for me. I built the engine myself with higher compression and a cam so it had to be tuned anyway. I just got a wideband installed and its running just a little bit lean and the transmission shifting sucks. Its so bad the converter locks up at 35mph under light load. It shifts to od at about 30mph. I believe some of that is that i did not run the 4 wires from the range switch like i was supposed to. I just ordered hptuners to try and fix these issues. Is there a tune in the repository for 99 tahoe 4x4 5.7 0411 swap? Since i do not have my tuning stuff yet i cannot look. Or will i have to cobble up a tune with this os and this engine and transmission segment and add in the transfer case segment? Tia.

    Hey mate.... I'm about to start with a '99 Tahoe 5.7 tune in the 0411. Do you have a tune file that's pretty well debugged?
    Any help would be greatly appreciated. Just getting started here.
    Cheers
    Mike