[socal1]

Recently purchased 07 Mustang v6 with Pony Package. I noticed
an unusual sound while driving home on freeway. When I reached
70mph the sound came from underneath the car kinda a roaring
strong highway noise. Is this normal for the v6 with stock muffler?
Or could it be the not so expensive Goodyear tires that came one it.
It's almost like it hit a 'sweet spot' in the rpm's and developed a
strong humming noise underneath the car..Anyone else notice this?
(or) could it be transmission problems that I should bring to dealer's
attention. Have owned a 1967 restored stang and a 2000 GT and
never noticed this before. Any advice on smothing the ride out'
or are we stuck with the rear live axle and finding every bump in
the road. *ha),,thanks guys..

[importdestroyer]

I have the same thing with my 2005. I think it's a ford thing. My sister has a 2003 Lincoln LS and it does the same thing as well. Mine usually happens right after i go into overdrive. I dont think it's a big deal, but im not an expert either. I just have the same thing going on. Hope this helps.

[socal1]

I was thinking it was a "Ford" design thing also! I don't want to play with the air pressure in the tires because that may cause the air pressure monitor to come on...If it happens with the Lincoln it must
be a 'design' thing common to Ford cars happening after car goes into overdrive.. Thanks

[importdestroyer]

No problem man.