Originally posted by Tony2005:
Check heat shield for catalytic converter. Could be loose.



Definitely not the same type of sound. And that wouldn't only happen right on startup. It would be random times depending on engine RPM and vibration along with road conditions.

Tony 1998 SVT Contour (B/MB) #542 3L 1998 SVT Contour (SF/MB) #1266 parts car 2000 SVT Contour (SF/MB) #1533 3L swap to begin!