NEED HELP!!!! torque converter clutch stuck on :(

I have a 2001 regal gs an im pulling a code P0742 i didnt notice any problems when i first got the code but now my cars shifting an not shifting at all need to see if any one has any knowledge on these trans please help

what happened to your red/chrome riv?

Albertj

I had the same problem. It means there is crud stuck in the valve body, causing the TCC solenoids to get stuck on or off. P0741 means TCC is stuck off, P0742 means TCC is stuck on.

P0742 is the worse of the two because it probably means your trans is bucking as it downshifts, trying to deal with the torque demand of staying locked in overdrive. It may stall even. This could damage your trans if left unchecked, and in my case, the problem did not work itself out. It was really stuck.

My transmission mechanic had to replace the valvebody to fix this problem. I think he dropped the unit to do it, but I've heard you can swap (or at least access) the valvebody on some cars without removing the entire transaxle.

If you know someone with a Tech II, there may be a way to energize the TCC solenoid, maybe get it unstuck. I've heard of this being done, but it was not done to my car, and I do not know the procedure for doing it correctly. Good luck, feel free to read through my experience here:

https://rivperformance.editboard.com/series-ii-engine-transmission-f4/diary-of-a-dying-transmission-t1594.htm

Do you have any other codes as well?

thanks AA my trans just started this an just started slipping but me an my dad opened the valve body an are going to replace the clutch converter hope that will do the job an oh yeah the rivs my moms car i ended up getting a regal

If you can replace the clutch solenoids, or at least move them on & off, that might fix the problem. Best of luck!

thanks going out in the shop today ill let you know what happens

does any one know how to take the c-clip off of the tcc solienod

just got it off !will not me but my dad did.doesnt look like its plugged at all hope this is the issue thats throwing the code:(

will its all finshed seems to be shiffting great:) just imagine if i took it to the shop it would have been like a 800 dollar fix an thye probably would have had me replace a bunch of other junk that i didnt even need glad i got a dad who knows about cars