I have a 1998 12 Valve. It has a 3 GSK. It was installed 3 years ago. Pulled the linkage off of the pump and started to the truck to verify that it was not the throttle cable. It seems to be at the pump. I took it to a shop and had them look at GSK kit thinking maybe it was too tight. Now they said the truck wants to stick at 3/4 throttle when you drive it. Do you think it might have a broken governor spring?