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  1. 4l60e faster firmer more consistant shifts

    I want to leave shift speeds stock but shift times I want them to be at .300. I know I should add 5-8 to 10% shift pressure but should it be just the upshift pressure and not base right? Also was...
  2. So my ecm is new it will take a tune tps is fine...

    So my ecm is new it will take a tune tps is fine vss is fine ect works properly. What should I check also the trans was a rebuild gm certified unit. My battery is good all grounds have been cleaned...
  3. They feel like garbage the 1-2 shift is fine no...

    They feel like garbage the 1-2 shift is fine no matter what tire size is put in. The 2-3 fights the transmission adaptive pressure first time its too slow and comfortable (Cadillac shift) and next it...
  4. truck has serious shift time errors help 6.4shift error .5 shift time..

    Got a new transmission bc last one was going out had truck reprogrammed back to stock. 99 gmc sierra 2wd 5.3 4l60e. Went with the bigger than stock tires which are the optional size posted on the...
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    Tire size/gear hptuners change?

    When i first starting using hptuners 5-6 years ago you could enter a tire size example 29.9" tires was dropped to 29.23 to account for the load on the tire ie weight compressing it down. Actual tire...
  6. Brand new rebuiltgm 4l60e pcm with stock reflash

    Rebuilt gm transmission newer ecm with stock flash trans adapt reset crank sensor relearn clean maf fast adapt set still shift time errors .700ms didnt set a code. Vss sensor works fine it has to be...
  7. I looked up all files in the repos all of them...

    I looked up all files in the repos all of them are 3.73 and 4.10 rear gears :(
  8. any1 happen to have a 99 5.3 /3.42 sierra/silverado stock file by chance?

    please n thank you
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    can I get the 4l60e table pretty please

    can I get the 4l60e table pretty please
  10. you can also adjust the trans line pressure...

    you can also adjust the trans line pressure alittle I think max is set to 96psi. Try setting it to 96 and see if she shifts then. You can always go back and play with it but it could be your trans...
  11. not good no need maybe if you only traverse hills...

    not good no need maybe if you only traverse hills and mountains maybe but its shifting with it locked up is no good for longevity.It would work but for how long. I myself only have lookup in forth...
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    shift time is the desired time it should shift...

    shift time is the desired time it should shift the pressure controls it but it should adjust the pressure to try and hit that desired shift time since its adaptive it should actually learn and use...
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    tuned efans bad battery

    I tuned a friends truck and set up his efans to work but he had a bad battery and we used a jumpbox to power it in order to program it. Fans were working correctly and everything was fine. Then his...
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    no I wish it was that easy theres a bunch of...

    no I wish it was that easy theres a bunch of formulas that you got to factor in gear ratio/diameter of the tire whole bunch of crap... tire diameter x 63360 feet in a mile=revs per mile
    ...
  15. Tire Size(s) 235/75R16 = 29.9x9.3R16 ...

    Tire Size(s)
    235/75R16 = 29.9x9.3R16

    29.9-2.23%=29.23 which is what matches stock calculated tire size

    255/70R16 = 30.1x10R16

    30.1-2.23%=29.42
    30.08-2.23%=29.40
  16. tire size shift time error shifting early

    ok I have a 99 5.3 gmc sierra auto 2wd 3.42 i changed from oversize tires back to stock ones well the biggest allowed stock tires atleast for my truck are 255/70/16 cooper at3s the manufactures specs...
  17. stock knock retard can go that high on mine the...

    stock knock retard can go that high on mine the only thing that helped was replacing the plugs to the cold fire tr55's now I get maybe 4k but if you adjust your knock retard attack and decay rate it...
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    when you click transmission>auto tcc look to the...

    when you click transmission>auto tcc look to the far right you will see low speed vss and high speed vss set them to 0% line mine is set so unless you take you foot off the gas hit the brake or...
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    4l60e problems

    55000 Vcm scanner log
    55001 Config
    55002 Tune

    Ok heres my log config ^ and my scanner file. Shift time errors here and there I even recorded the times it was shifting and changed them in...
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    shifting before desired shift times?

    why is my 2-3 and 3-4 gear shifting early like ill see .200 shift time with a .300 shift error where I haven't even altered tm pressures anything really I can reset to stock tune and still get it Ive...
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    does everything shift and drive ok otherwise?

    does everything shift and drive ok otherwise?
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    where the hell can I even get the tool found page...

    where the hell can I even get the tool found page yesterday downloaded it but Microsoft office was being shit now I get it downloaded (Microsoft office) and cant find it bluecat tool with keywords on...
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    you have to monitor some special PID its called...

    you have to monitor some special PID its called fast learn or something so ive heard
    http://www.hptuners.com/forum/showthread.php?37670-New-scanner-VCM-Controls&highlight=fast+learn
  24. check your shift times most likely it will...

    check your shift times most likely it will explain why 3>4 shift is so fast if its anything like 2001+ 4l60e its zero'd out
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    I would also check your 3>4 shift id compare both...

    I would also check your 3>4 shift id compare both that and the torque converter lock up speeds and make sure lock up speeds are a little higher for corresponding throttle position cells. If...
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