photo by Razimantv
nor one located somewhere under the bonnet of your car (unless it's somewhere in the boot - though it only starts up when you're going at over seventy, when it's really not practical to have a look for it).
photo by dave_7 https://www.flickr.com/people/21612624@N00
This is a Rattle worth hearing:
but even if that's not your thing then one of these can't be far away:
The other sort of rattle is caused by the rattling of a tongue, that is someone who talks and talks and talks about nothing very important.
But everyone has long practice at spotting those so they can take evasive action.
Spot the Frippet: rattle. This is an imitative word. It's basically German.