jbrown122 wrote:A few months ago this problem started. When I stop at a light or whatever, the car stumbles, the idle goes to 400 or so, then goes back to normal. No check engine lights have ever come on from this problem, no vacuum leaks, other than that, the car idles great and smooth, no stalling or anything.
Also, the car is great in P or N, But when I put it into gear, it vibrates. Upper motor mount was replaced, I thought that was the problem.
Any ideas are greatly appreciated!
I have some less-than-good news. This is a symptom of an impending ETM failure.
Sometime in the next 20k miles, expect an ETS light and/or more severe symptoms. There is, as far as I know, nothing else that causes that in these cars. Not the gearbox, not the engine management, not a bad MAF...
I remember reading a forum post about the failure modes of ETMs on SwedeSpeed, outlining this as one of the first symptoms of impending ETM failure. Anybody remember/have the link?