I ran over a stunk when my SVT was only 3 weeks
old...( skunk was fine btw)...it took a long time
before THAT smell disappeared. I went to a detailing shop and they used some sort of ionizer
to neutralize the smell....but it took time.
Another source might be the air vent system...which
is a pita to troubleshoot. A thorough cleaning
is a good start.

1999 Black SVT #2639/2760 on 08/11/1999; w/18" OZ Racing Superleggera's, Yoko Paradas.
MSDS Headers,Quaife LSD, Borla,KKM,chipped,DMD,Baer 13" Track rotors.
Lowered/HR and Koni's; HPP RSB