: 2006 STS rwd

01-25-13, 04:00 AM
Hello every one. I need help my 06 STS started to roughly idle and shake while I was driving yesterday and the check engine light came on. Does anyone knows what may be the problem and how costly is the repair?

01-25-13, 04:36 AM
CEL should be your first step. (we're in the 'dark' here)

01-25-13, 05:55 AM

01-27-13, 01:55 PM
Get the diagnostic codes read.

01-27-13, 02:11 PM
V6? Pray it's not chains.

01-27-13, 03:58 PM
It seems there have been a lot of posts from new members lately with lack of info on the car yet requesting information on how to fix...

01-27-13, 04:53 PM
If it's a v8 check at the back of the engine and see if the vacuum hose has fallen off. This happened to mines last year, car idled like a monster but drove fine cel came on with two codes, can't remember them. But check that and if not check the codes and go from there.

01-27-13, 06:59 PM
Good call B1. That is the vacuum line for the brakes. So if that came off you should notice a significant reduction in stopping power as well.