Cadillac Seville PO741 torque control solenoid issue affecting gas mileage and emissions on Cadillac Seville

Some Cadillac Seville owners report experiencing issues related to the PO741 code, which indicates a problem with the torque converter clutch solenoid. This issue can negatively affect gas mileage and emissions, as it may cause the torque converter to exceed slip parameters set by the PCM, impacting the rotational speeds of both the transmission input shaft and the torque converter. Additionally, some owners find that slippage can result from worn seals in the TCC apply circuit, requiring these seals to be replaced after dropping the transmission. To effectively address this problem, a thorough diagnostic scan is recommended to confirm the code and pinpoint the specific cause. Owners are also advised to inspect the TCC solenoid and torque converter for wear or damage, as well as check the transmission fluid level and condition, to resolve the issue and maintain optimal vehicle performance.