ok i'm having some issues with my bull. ok when taking off from a dead stop if i push the pedal to much it studders. it don't even take that much when cold but once it warms up i can push it down a little bit further to start off. but once it goes into second i don't get any shutter but i get what seems like a slip. but its real bad when its cold. and with the ses light it comes on while cruising down the highway at about 70-75 and it'll go out after awhile i don't know if its the pump or the torque converter lock-up solenoid or if it just needs to be rebuilt. i know that i had messed up and when i have done the tranny filter the last couple of times i had put dextron 3 in it instead of the mercron that could be an issue but i'm not a tranny expert. any help would be appreciated. i just want to get some idea on what is causeing it before i take it in next week to get a dianostic ran on it cause i have a coupon for a free diagnostic at a tranny shop here in town.