i have a 2008 f150 supercab 5.4 37,200 miles my driver side rear door has a rattle in it, the door is closed tight but when you hit a small bump has this small rattle like there is something in it rattling around. anyone have any ideas,, it was a leased truck had 29,000 when i bought it.

 

Where'd you get it from?? Could be an illegal immigrant.

 

Could try putting dynomat or some kind of sound deadning around the plastic clips or mounting screws.

 

The rear door latch on my '07 SuperCab rattled. I took it to the dealer and had it adjusted under warranty. The rattle returned a few weeks later.

The fix was to put my hand even with the back door glass when closing. This ensured proper engagement of the door latch.

I could always tell that my wife had driven the truck. The back door would rattle. I would have to pull over and open & close the door to make it stop.

Something to try.