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  1. Its about the same.. Just more gears and lockup...

    Its about the same.. Just more gears and lockup "can" happen in all gears
    Turn off lockup in gears 1-3. I also tow with my Yukon heavy. It's 2014 so diff engine, but same trans
    Also reduce the...
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    They left the lockup function on in 3rd - 6th...

    They left the lockup function on in 3rd - 6th gear....
    So gears 1-2 just ignore, it'll never lock up
    I'd get rid of lockup altogether in 3rd gear - it's kinda silly to have it in...
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    WOW .. Just a quick look at your timing tables...

    WOW .. Just a quick look at your timing tables and idle timing.... way too much advance like Greg said..
    I'm no expert like he is, but that's a lot of degrees !!!
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    Post your tune so people can look at your...

    Post your tune so people can look at your parameters and give your help !!!
  5. Thread: 6l80e question?

    by Tfoggy
    Replies
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    596

    More info needed on the year, make, ecm, etc ...

    More info needed on the year, make, ecm, etc etc To be able to help
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    Pan temp almost always reads lower than the...

    Pan temp almost always reads lower than the internal temps read by the ecu...
    Only time they really match up is sitting in traffic or a drive thru for an extended time..
    So that's a good thing.....
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    In my older 4L80E the pan temp and the internal...

    In my older 4L80E the pan temp and the internal temp do not match exactly most of the time... Only at cold start up.
    The electronic sensor is in the valvebody somewhere and my gauge temp sensor is...
  8. Thread: Cam Swap

    by Tfoggy
    Replies
    21
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    2,710

    The pushrod length should always be dialed in...

    The pushrod length should always be dialed in anytime you change components.. But yes, the 7.4 is the normal so you should be ok.
    And the springs are good too.. Just didn't mention those in post...
  9. Thread: Cam Swap

    by Tfoggy
    Replies
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    2,710

    You didn't state if which pushrods and...

    You didn't state if which pushrods and valvesprings you used when you installed the cam...
    That would be useful . Hope you didn't use stock stuff.. also your rocker arms should have been...
  10. Serious Mechanical Issues for sure

    Serious Mechanical Issues for sure
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    Chris2008 I bet you are looking at the auto...

    Chris2008
    I bet you are looking at the auto trans values.. I've not seen those in manual selection.
    But it's certainly in the auto side of the values...
    but either way, it wouldn't hurt anything
  12. I have a 4l80e that is built to hilt in my...

    I have a 4l80e that is built to hilt in my stepside.. Controlled by compushift standalone
    During raceweek a few years ago, it mysteriously decided to not upshift from 1 -2 at WOT...
    Lost in...
  13. Crap.. I'm wrong.. I looked up P0100... fat...

    Crap.. I'm wrong.. I looked up P0100... fat finger I guess.
    IF it's a larger cam, then the VVT tables will need to be modified.. And possibly a cam phaser limiter should have been installed too
  14. That's a mass airflow code... I'd check for...

    That's a mass airflow code... I'd check for mechanical things like a vacumm leak, wiring, loose air intake clamp etc in the air intake system..
    And then clean the MAF, etc
    Likely an old...
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    If you already own a diablosport and plan on...

    If you already own a diablosport and plan on keeping your Yukon stock... Just buy another VIN license for it
    so you can tune out the DOD...
    Unless you want to improve your transmission...
  16. Might check/reduce your minimum airflow while in...

    Might check/reduce your minimum airflow while in gear section... It could be holding the Throttle open a bit too much
  17. Following this post.. I've done the 6L80E's but...

    Following this post.. I've done the 6L80E's but really not much with the 8 speed. My son wants me to tune his 2016 Yukon Denali, so
    I'd be interested too !
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    you could temporarily change your AC fan settings...

    you could temporarily change your AC fan settings to see if that will keep them OFF.... IDK if your ac system works or you are going to make it work...
    But listen to GHuggins on this for sure
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    I have found that table in a totally stock 5.3...

    I have found that table in a totally stock 5.3 gmc 2013... Yes, it seems the fans run all the freakin time
    Just adjust the table to your liking...
    Kinda like start ramping up fan% starting at 203...
  20. Thank you for the info !!!

    Thank you for the info !!!
  21. It looks pretty "normal" to me for a supercharged...

    It looks pretty "normal" to me for a supercharged street/pump gas engine
  22. I'll eventually go to FIC injectors... Blind, ...

    I'll eventually go to FIC injectors... Blind, can you tell me which one is the "right" one ???
  23. No problem... That tighter lobe sep you have...

    No problem... That tighter lobe sep you have will affect lots...
    I don't really know "alot" about that tune other than I had to bring it back 3 time (and pay $$ each time) to get it to this...
    But...
  24. Oh crap.. I didn't realize that you are Gen V.. ...

    Oh crap.. I didn't realize that you are Gen V.. I usually just lurk around the Gen IV forum to learn or help if I can
    A gen IV tune will do nothing for you but i'll post it anyways
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    I'm going to disable my flex fuel "virtual...

    I'm going to disable my flex fuel "virtual sensor" and see if my 14 yukon denali runs a bit better...
    Seems my alcohol % always hangs out around 3% even when I know it's between 10-15%..
    I'll...
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