This just started happening a couple of weeks ago out of the blue. It seems to just do it when I come to a complete stop, say at a red light. It last for about 5 seconds. As far as other issues go, nothing else seems to be affected.
Here's a video. Watch/listen closely how my rpms seem stuck low while the rattling occurs. But as the rattling stops, my rpms shoot back to normal idling.
Here's a video. Watch/listen closely how my rpms seem stuck low while the rattling occurs. But as the rattling stops, my rpms shoot back to normal idling.