i just took a drive home from town and my truck just threw a transmission code(will post the code later) about a shift solenoid 2 and the over drive is flashing as well as says "trans fault" on the dash, the truck launches in 2nd gear and wont shift in to 3rd or 1st only on occasion, not understanding, im going to do a tranny flush but i hope that works what is everybody's input on this matter? how hard are solenoids to replace???

 

Duplicate thread so I tossed one.