Is there a sensor on the transmission of a 1998 Chevy silverado 350 that would make it suddenly stop shifting?

Answer 1

There are 3 or 4 shift solenoids located on the valve body under the pan. Sometimes hard obtaining info on which one is which. They are about $25.00 and the dealer may be able to help determine the one You need. You're lucky You don't have a front wheel drive as it's almost easier to remove the transaxle to replace a shift solenoid. 1 is tcc (torque convertor control) and the other 2 or 3 are 2-3 shift and 3 -4 shift.............etc. good luck. Also, if You're trans fluid has'nt been changed in say more than 25,000 miles, more like 35,000 or more, there is a good chance the problem is dirt in one or more of the valves and a good double fluid change will fix it. Of course there are other possibilities like the T.V. cable adjustment. And if it's that, being out of adjustment can fry the tranny in a hurry. Maybe it's all electronically controlled and You have an open wire. again, that can fry the tranny in a hurry. good luck.