Sorry I forgot to mention. I had the mechanic try cleaning the throttle body when the alternator was replaced recently. I have also run a fuel cleaner thru 2 times. Neither has made a dent. I was also told the motor mounts looked fine. Perhaps the injectors have issues under less pressure during idle?

I found this thread and am having a similar issue with my 2009 vibe with a 2.4 engine. I bought the car with 29k miles and am up to 187k. I did not see a fix here based on what I am seeing. My vibe has ALWAYS had idle issues after a battery disconnect (service, replacement, cleaning). The idle goes ...