hello, I have a 2014 Lancer with 20000 miles, the problem that I have is when I reach between 1800rpm and 2300rpm a vibration noise inside the cabin begins (sometimes), but it only happens when accelerating, when going down a hill at that range of rpm it doesnt sound.

Any help?

Thanks !

 

I don't understand your question? It only makes a noise going down hill and accelerating or accerating and going downhill?

 

It only sounds when accelerating between 1800 and 2300 rpm