P0742!! Please help

[tlawnewtograndprix]

Hello everyone,
I'm having a problem. I have a 1999 Grand Prix GT (not supercharge) and I get the code P0742 (car shakes also) whenever I drive my car for over 20 min. or go over 50mph, which sucks. I understand that the code means that I have to replace my tcc solenoid but I can't seem to find it. Does anyone know where it is? I've tried looking for pics or anything that can help me but I couldn't find anything. Please help.

 

[Scottydoggs]

its in the transmission. the side cover needs to come off to get to it.

 

[tlawnewtograndprix]

thanks i'll look for it there

 

[Scottydoggs]

http://www.grandprixforums.net/showthread.php?t=82478&page=5 post 94, he posted a vid, towards the end hes putting the sensors back in and then plugs the harness in, its one of them.

 

[tlawnewtograndprix]

ok thanks that video does help out a lot. I'm going to give it a try this weekend if the weather allows. I'll let you know how it goes

 

[BillBoost37]

Double check that code. It's not always a soleniod. It can be a hung up valve in the VB etc.

 

[tlawnewtograndprix]

I checked on 2 code scanners and the both said tcc stuck. I read a few articles about this being a common problem. How would I check to see if it is a hung up valve in the valve body.