Code po742 - 2000 Chevrolet Impala

Yes, it is a Transmission code: PO742 Torque Converter Clutch Circuit Stuck On

Yes in most cases the torque converter is defective, you will need to have the transmission removed to replace the torque converter.

Hi, The PO742 is a transmission code representing the Torque Converter Clutch (TCC) release switch. To throw this code, there is either an electrical, mechanical, or hydraulic issue.

If you are extremely mechanically inclined, you will need to check the TCC solenoid, verify the connections of internal wiring harness, and perform an overall diagnosis of the transmission's condition, which will require removal of the transmission.

Given that you have a 4T65-E Transmission I would highly recommend taking it to a good transmission shop, this is not a 'quick' fix issue. Good luck and Godspeed.

www.engine-light-help.com/generic-check-engine-light-codes.html

po442= evap emission control system leak (small)
po742= torque converter clutch soleniod circuit stuck on
i got these out of the booklet for my code reader po442pd wasn't listed

code PO742 means torque converter clutch circuit stuck in on position

"Torque converter clutch" solenoid is stuck open which is causing your bucking problems. The solenoid is either disconnected or faulty. if you ran over something, it may have damaged the wiring, but if not, you need to take it in for checkup.

evap emission control system fault-po441, po742 is--torque converter curcuit stuck on, for this code, check torque converter clutch switch..

i have the same problem, what can i do to fix it?

TCC silonoid.. torque converter control... seems simple but you gotta drop the front subframe to get the side panel cover to but it in....