My engine emissions light came on a few days ago but went off after one day so I'm not sure if that has anything to with this but here goes: It's been a few days now that my car vibrates weirdly when I first turn the car on. It gets a little worse if I turn on the a/c. It's definitely coming from the engine area and I'm not exactly sure what it is because it only happens once in a while. It used to only happen when I would turn on the car in the morning but now it's happened a few times at night. Any ideas as to what could be causing this besides motor mounts?

 

we will need a bit more info like miles on the car, auto or manual, etc.

 

Try having the codes read .. if a light came on it may be more than just one thing ...