so after digging in the forums i finally found out that the ~1500rmp vibration is coming from spacer plate between engine and transmission. My car no longer has warranty so i was hoping someone can find some pics of the actual plate and where it is making contact, so i could fix it myself.

 

The noise you're talking about is under a TSB, TSB's are not necessarily warranty items. Take to a dealership and ask them about that specific TSB. I don't know the number right off the top of my head but depending on the dealership they may just do it for you.

 

I dont think its the same vibration. It normally occurs around 3K only.

Link to the thread with solution
https://mustangforums.com/forum/2005-2014-mustangs/337453-stupid-metal-rattling-noise-at-3k-rpm-edit-solution-found-9-7-07-a.html

 

the dealership i have been going to is very good worked on my car about 3 times trying to find the problem and never charged me anything. I guess ill go back and talk to them again. I wish someone actual had a TSB they could post tho.

 

well i dont know the problem is so similar, at 1500rps i get a grinding noise i swear its metal to metal, i can even feel it through my steering wheel and gas pedal. Only does it while in drive, at any speed and any gear....wth

 

Does it do it when cold only, or all the time? I know I had a heat shield that was making an awful vibration at about that RPM, but would only do it when the car was cold.

 

it does it all the time, i looked under the car for any metal to metal contact and could not find anything.

 

if it was a heat shield, you wouldn't feel it in the steering wheel and pedal, though...