Vibration
 

I'm a newbie with a vibration problem I'm having with my '93 integra GS-R. The vibration only happens at freeway speeds and only when the engine is being loaded (happens when I go uphill or when I accelerate). I'm sure it's not the alignment or wheels out of balance. Could I have (a) broken engine mount(s). It feels like the vibration is coming from the center-front of the vehicle. Please advise.

is it a high frequency or low frequency vibration?

at what RPM does it occur?

it's a low frequency vibration and it shakes the whole car. It doesn't seem like wheel or alignment vibration. The vibration isn't felt through the steering wheel. The vibration usually happens between 3-4k RPM. It almost feels like the old 66 type 1 volkswagen I used to have, clutch hopping (that kind of vibration).

Check your motor mounts. And CV joints.