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Old 09-16-2011, 06:54 AM   #1
Scooby Newbie
Member#: 265265
Join Date: Nov 2010
Chapter/Region: MAIC
Location: Pittsburgh, PA
2004 RSti
Midnight Blue

Default Heavy vibration under acceleration, possible issues?

About a week ago my car (04 wrx) started getting a light vibration around 35-55 mph. I figured it was just my exhaust hitting my unibody because it does that at certain engine speeds.

Yesterday when I went to make a pass I dropped to 2nd and got on it. The problem is now alot more severe. It vibrates heavily when under acceleration, mildly in neutral, and it smooths out when down gearing down hills.

I put the car on stands yesterday and the drive shaft is fine and the motor mounts are tight. The only thing I noticed is the front right axle boot is ripped, it had to happen in the past two weeks because I just put a new suspension set up on the car. I thought that torn boots usually effected turning and not the spinning motion of the axles.

Could this be the source of my issue, are there any other things I should check out?
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