My V6 '06 has developed a vibration that sounds like plastic is rubbing…it is more apparent when the motor is cold, sounds like it might be plastic rubbing on metal. The Huge air filter system/motor cover is a little intimidating for me to just start taking apart but i think this might be the heart of the issue. Any help greatly appreciated.is plastic
If you really think it sounds like vibrating plastic I’d start by just popping the hood w/ the engine running and pressing down on all of the plastic components and covers to try to isolate the source of the vibration - being careful of moving parts, of course.
But one other thing to consider is whether or not the engine itself is not vibrating more than used to - either from worn/broken mounts or perhaps some minor rough running of some sort.