Hey, have a 2002 DTS. Beauty car etc loaded with nav and night vision, white diamond on cashmere etc, but the transmission gets skippy and like I've read it up and I think it's the solenoid but I'd just like to make sure before I buy the part. Solenoid's a cheap part and everything I just wanna make sure. I'll be driving and 1st, 2nd is fine, but usually in third it'll act like it's holding in a clutch or going into neutral or something, it's annoying during driving as I'm either accelerating or coasting basically. The speedo says 0 but my rpms stay the same and are accessible from accelerating -- I'm pretty sure it's the solenoid. Because my gas mileage is also down, which I read online is caused by the solenoid. Any info is appreciated!
Cheers

 

I have a 2002 Deville Base, which is basically a "weaker" engine than yours, and my engine codes are also saying TCC Solenoid. The good news is, it's a cheap part. The bad news, it requires the removal of the engine to replace. There's a mechanic on YouTube who does it in a few hours, but you're working with a very small space, about the width of your finger. Worst case scenario is it could be the Torque Converter, because the symptoms are similar. As a transmission specialist told me, replacing just the TCC Solenoid may help, but it's best to find out WHY the solenoid failed.

TS

 

My 92 eldo. was doing the same thing,my mechanic suggested using a product called shudder stop, you add it to the transmission, it worked for me,
I don't really believe in additives, but I think it did the trick,it loosened things up.

 

What part of Canada do you live in?.