View Full Version : P0741 code - ATTN: bbobynski


syhnthetik
06-06-05, 08:42 PM
bbobynski,

I tried to pm you, but for some reason it says that I do not have priveledge to do that. I have the P0741 code on a car I just bought (1999 STS). I live in Florida and flew out to Dallas to pick it up and drive it home. About 150 miles outside of Dallas the SES light came on, turns out that it was P0741. I have been doing ALOT of reading on these boards about this code, and finally decided to take the car to a caddy dealership to let them troubleshoot the problem. As expected, they came back with a $2400 estimate, saying that the torque converter and "upper valve body" need to be replaced. I asked them a bunch of questions about how they came to that conclusion (did they rule out the wiring, brake switch, ECM, etc etc), just like you have advised others to do. They said that they hooked up a tech 2 tool to it and "commanded" the VCC to lock up. They said that it is slipping beyond the limits (200 something or another), and that definitively showed that the torque converter and upper valve body would need to be replaced. I am wondering if this all sounds correct, and if they might have missed something else that may be causing the problem. I was also wondering a little bit about the aftermarket converters. I have heard that Yank makes a converter, but when I went to their website, I was not able to find one for my car. Do you know if they actually make one, and if so, would it be beneficial to the performance to replace the stock one with a Yank? Thanks for taking the time to read all this, and any help you could give would be much appreciated.

Syhnthetik

TexasAxMan
06-07-05, 12:06 PM
Search this board, there is an updated PROM which will expand the limits of acceptable slip in the VCC. I have the same problem and have ordered the chip, but have not received it yet. Mine's older so the code is different but means the same thing.

Hope this helps. Don't know where BBOB is, I've asked some questions that I thought he'd chime in on, he must be on vacation or something.

Res STS
06-10-05, 09:06 PM
I miss bbob too. What a wealth of knowledge, and he can clearly explain things. It's been a privilege to hear from a knowledgeable GM engineer. I hope he didn't give up on the forum as a result of some heated differences of opinion on the forum.