: p0741 trouble code



comrad
07-10-06, 02:08 AM
can some one explain what is P0741 Torque Converter Clutch Circuit Performance or Stuck Off is?, thats what the check engine trouble code i get in my 1998 caddy seville sts and i have no idea what that means
thanks

Ranger
07-10-06, 09:23 AM
At 41 MPH the TCC solenoid engages and locks the engine to the torque converter so there is no slippage for better fuel economy, somewhat like the clutch plates on a manual trans. Yours is not engaging, thus you will have some minor slippage causing a slightly higher RPM (200-300) at any given speed, thus reducing fuel milage by about 1 MPG. The fix may be somewhat expensive as the TCC solenoid is behind the side cover I believe which means a trans removal. You may just want to live with it. That said, there is a switch at the top of the brake pedal that disengages the cruise and the TCC. You might check to see that it is adjusted properly and that it is operative, but if it where not, I'd expect that you would also have cruise engagment problems.