Rough idle. Replaced plugs, coil packs and cleaned throttle body intake.

Owner; Have you had this vehicle scanned ? and the code is ? Causes of a rough idle could be: Motor mounts, vacuum leak, dirty throttle body, contaminated mass air flow sensor, unequal engine compression, secondary ignition issue,fuel injection issue,oxygen sensor failure, head gasket failure, transmission torque convertor problem,engine mechanical timing problem, A quality engine performance diagnostic is always the best place to start, before purchasing parts you may not benefit from. Good Luck, and have a Happy Thanksgiving !