Has anyone else notice their trucks hesitating under WOT? My truck has always done this since I bought it with only 7500 miles on it. An example of what I am talking about is this morning on my way to work. I turned in to the office park where I work then made the right to go down the 1/4 mile strecth to the building I work in. After making the turn I nailed it. I watched the tach today when I did it. It jumped up to 3000 real quick then it dropped to 2800 for a second and begin to accerate again. I did not notice how fast I was going when I nailed it. I would say 15 to 20MPH. I thought the Superchips Micro Tuner would correct the problem, but it didn't. Any ideas or suggestions?

Thanks,

 

I don'T know enough about slush boxes but I don't think it is engine hesitation. It sounds like the tranny is softening the 2-1 shift by letting the engine rev to3000 before completing the down shift.

Regards

Jean Marc Chartier