Yes. The normal shift kit instructions usually say to adjust the regulator spring (the allen wrench one) where you can fit a 5/16 bolt between the plate and cage. Depending on which spring is under the cage this can be too much and be over riding any signal from the kick down. Like the beast said I would back off the regulator a bit and see what happens. This can be done in car.... Needle nose vice grips may be required though....