The cabin air filter can not cause a rough idle. It only filters the air for the ac/heater.
Motor mounts are bad
It could be a dirty air filter or a dirty throttle body.
if it idles rough too, check your plugs, if not, check your fuel filter.
crankshaft sensor going.
Auto Zone will check your computer codes for FREE... I be you have a bad coil pack, or bad spark plug / wires.
If the 2000 Kia Sportage has an emission control icon on the dash and the vehicle idles rough, it is probably the oxygen sensor that is the problem. It could also be that the air filter is dirty and needs to be changed.
the 96 fordwindstar sucks
you pooped in your pants!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
You might check to make sure that the choke is not staying partially closed. That will cause these symptoms. Also, make sure you have a clean air filter.
my 86 was doing the same thing, a buddy of mine told me that the fuel filter was probably plugged.he said that the rough idle was do to the car strugglen for gas and it would die because when u give it gas the gas is all stopping at the filter so the car dies. i changed the filter and my car regained all its lost power and purred like a kitten!
replace timing chain
Run a compression test.