2005 LS driving rough

[bustoff]

sounds like it is the tcm

btw, what is the tcm?

 

[RedDead]

Transmission Control Module

 

[darklink991]

Ok well got my balt back from dealership. The TCM need replaced, it fixed the speedometer, tranny not shifting, and the powersteering DIC message to go away, Think it was 400 total without a extended warranty.

 

[bustoff]

We got ours back and it is running OK. They cleaned the contacts on the modules, but did not have to replace any.
All's well that ends well. Thanks for the help, everyone.

 

[XxChristalSSxX]

I had the same problems. And before anyone says anything, I'm too lazy to read the previous comments. Power steering recall is one issue; take it to the dealer. Catalytic converter recall (must've received a letter from GM); call a dealer (when they replaced mine, my gauges started working properly again). The dying @ low rpms that I had an issue with was from a clogged throttle body. You may want to clean yours and see how that does. Hope I helped...


EDIT: I see my post was worthless since you've fixed your issues.

 

[nardcast]

i might have to take my cobalt to the dealership for the same issues. first, i might get the audio shop to re wire my amp installation to see if they did my amp install correctly.