Hello, I'm new here
I have a 05 Colorado, I5 3.5 auto.
When dealership updated flash, something must have went wrong, in my opinion.
When I got it back first to second shift was amazingly soft and like one to two seconds to get it done. Second to third wasn't as bad but no where as good as it was when I brought it in. I bought my HPTuners and received it Friday. I upped the pressure about 12 to 14 across the board in the tranny tab. Now it shifts pretty good and fast. The next question I have is since I got it back from dealer, from cold startup when come to as stop. Then take off it seems like its still in second or in between gears for a moment then you feel it catch and take off. Pressures didn't help this. Am I on the right track or not? Should I have been adjusting in the torque management instead?
I can post the stock read if it would help.
Any help is appreciated.
Thanks