jlayne
Bondo Bandito
Ok my truck has got me stumped, not sure where to start looking. When my truck shifts from 2-3 the truck jerks about 3-4 times. While it is doing this the tach bounces up and down about 300 to 500 rpms. It will stop this as soon as you let of the go pedal. I cant decide what is causing this. If I'm just poking along or at full throttle it won't do it but at part throttle it bucks like crazy about 2 out of 5 times. I have been told over at the other site that it is the motor possibly something related to the IPR or some other sensor. i find that hard to believe because it only does it on 2-3 shift, I think it is something in the transmission or torque converter (hopefully the second because I want a new one anyway and I'm too cheap to buy one till this one is fried) It gives me no codes at all. The only programming I have on the truck currently is a evolution. Thanks