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Old 05-17-2013, 03:45 PM   #8
evilWagon
Scooby Newbie
 
Member#: 128739
Join Date: Oct 2006
Location: Ontario
Vehicle:
07 2.5i SE Wagon
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Quote:
Originally Posted by Impreza169 View Post
It only seems to happen when I'm driving. In neutral, revving my engine I can't seem to mimic the noise.
That was the same symptoms I had as well and it was the heat shield. A large pipe clamp around the heat shield beside the o2 sensor fixed it right up.
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