Drive Train Vibration

[grkgn]

Is it normal for these cars to vibrate at 90 mph when you accelerate lightly

on the highway? Does it have something to do with a rough idle?

 

[hiballin]

no, not normal. many things can cause vibrations but i would first suspect tires/wheels. check for flat spots on tires, tires not balanced, or bent rims.

if that stuff checks out then you need to start looking into the driveline.