<div class='quotetop'>QUOTE(Boost05 @ Mar 12 2006, 05:43 PM) [snapback]46815[/snapback]</div>well dude. about 2 weeks ago my truck was slipping in the 1-2, 2-3 also. i took it in. the dealer said that they had to reprogram my PCM. because my truck was taking off in second gear. they reprogrammed it. it felt okay for about a week or so. no it starting to feel al lil ruff again. no slipping or jerking yet. but still a lil hestitant than when i first got it. so... she going in for a chack up again on tues. he said if i had to bring it back they would keep it for a day or so . so the tranny guy could look at it. ill let you know what happens.Hi guys I'm pretty new here but have found some useful info here, but now i'm stumped. I have a '05 Sierra 1500 with a vortech s-trim on it with the diablo tuner. The truck has been running solid ever since vortech installed the kit but just recently my tranny has been slipping bad in the 1-2 shift and 2-3.... My fluid was burnt so I got it flushed. That helped it a bit but it didn't fix it, and it's worse in tow-haul mode.
I don't know much about the 4l60 so if anybody has any advice it would be much appreciated.
Thanks,
Matt
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