The probelm i'm having is that the truck will jerk around 50 and 55mph sometimes faster and the when i come to a light it will stall. It starts back up immediately but its just weird. The truck could be running fine and when that happens it stalls at a stop. Do you think i'm right looking in the right place? solenoids? or are my problems bigger? The truck pulls no codes and the computer has been rest twice. Also for good faith i changed ths TPS. Any suggestions?