Quote Originally Posted by wolftale View Post
I took my aveo to the garage to have the recall work done in January. I didn't have any issues with my car prior to...and was getting anywhere between 35 and 45mpg. I am now getting about 30mpg (cold weather may factor in there) but also my check engine light has come on twice and only about 500 miles driven since the work was done. I took the car back to the garage, no light on at the time, they did a diagnostic and came back with possible O2 sensor or something about cam actuator possibly related to poor oil pressure, because either low oil (which it is not) or possible due for oil change (which it may be) Onstar has 27% oil life remaining but was going to change oil at the end of the month anyway.
My question is ...could this be related to the recall work? They want to charge me for the diagnostic also, which I believe should be covered under warranty anyway. My 3yr /36,000 ended on the 13th of March. Any ideas?
Do you change your own oil? When was the last time that you changed the oil and what was the (visible) condition of it when you changed it?