I just bought another cavy yesterday for $1100 bucks, I didn't think much of the abs light and the trac off light being on cause I figured it was just a sensor but the car idles a little rough and surges between 600-1100 rpms and when driving at certain speed for a while it will do it too. What could it be?
if its an automatic, the fluid and filter might need a change. incorrect levels can cause similar problems.
ummm, the ecotec is not a SOHC... I would pull and clean your iac. See if that helps. No harm either way.
I meant Overhead valve don't know much about these motors
