Originally Posted by WJ_MOOSE
Thanks, I was told by someone that I'd have to open the whole transmission to fix it, didn't think that was right
Yeah, that would be crazy. The switch is fairly simple to swap out if it's the cause. What engine do you have? I should have been more clear in my posting. Those posts were for the 42RE transmission common with the 4.0 motor. If you have the 545 transmission, then yeah, looks like yours is inside the valve body housing in the transmission. More work involved there.