I have an 03 SVT, 99% stock. This sound started a few weeks ago. I notice nothing different in performance (yet) other than the sound itself. It feels electronically activated, meaning the sound seems to appear before the throttle affects driveline (like when you can activate your rear brake lights before actual braking starts).
It's a light scraping sound, seems to be coming from the left side of the dash behind the firewall, but can't be sure. It usually happens when cold. Anyone experienced this before?
The vid is complete from cold start up, no need to watch it all unless you are curious.