supersnake67

I have a 2004 Mustang Gt 5 speed and I have an rpm specific vibration right around 1,800 rpm. It happens in neutral and in 5th gear on the highway. Can't feel the vibration in 2nd , 3rd, or 4th at 1,800 while driving only when I do a neutral rev and it vibrates through the gas pedal and seats as well as in 5th gear. Car was bone stock when I bought it and had the vibration then and now. Things I have looked at so far are the dampner has no visible wobble , took serp belt off and vibration was still there. Put floor jack under car and jacked up motor , felt like it helped a little but not sure if floor jack will soak up the vibration. Does anyone think bad motor mounts can be rpm specific ??? Or maybe in the clutch ??? Just looking for some ideas or theories . Thanks

Prestophocles

I have an 02 GT and have the same issue. My vibration is at approximately at 1200rpm and only going from neutral to 1st. I've changed clutch and flywheel, debating on motor mounts next.

Need to get this fixed because its getting expensive lol.

supersnake67

Yeah it's a bit tricky , trying to isolate it before I just throw parts at it and motor mounts aren't fun , but I may have to dig in. lol

sn95_331_GT_ yellow

motor mounts take an hour... just get a set of them and a new trans mount

call it a day

supersnake67

I heard that . I already did the tranny mount thinking it was bad , but was wrong. So on to the mounts lol