I've been driving my son's stang to work this week while he's out of the country. I've noticed the car seems to buzz or vibrate at certain lower RPM's when accelerating slowly, it appears to be coming from the exhaust. I thought I had read somewhere before there was a SSM from Ford covering this very problem? Anyone know if this is the case, and if so what is the specific SSM which covers this problem?
TIA
U.M.
TIA
U.M.