Originally Posted by 02WhitereRam

My check engine light came on today while on the way to work. I scanned it and found code P0740 Torque Converter Clutch Soleniod Circuit Malfunction. My RPMs on the highway have been fluctuating about 200 or so RPMs every once in a while and I think its because the torque converter clutch is engaging and disengaging but I wasn't 100% sure. So I guess I'm not suprised to see this code but feel a little more reassured that the solenoid is probably the problem.So anyways my question is has anyone ever replaced the Torque Converter Clutch Solenoid? I think I read somewhere that you have to remove the trans pan obviously and then unbolt the valve body and its in there... is this correct? I am a GM mechanic so I will do the work myself.Thanks!Steve