Shifting
#1
Shifting
Hey i have a Silverado 1500 z71, and in the mountains i usually dont have any problems with it shifting, but if im in the freeway down in the valley it takes it a while to shift from 3rd to 4th. it used to shift around 3000 RPM, now it takes to around 3600. is it a sensor do you think or will the tranny need rebuilt? thanks!