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Super Moderator
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I need your help to know what this sound is in my Subaru WRRX STi 2004 ...
what do you think ??
Exhaust leak or valve tap. Rod knock is typically louder and more metallic. You'll feel it rock the engine
 

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Super Moderator (Actually a SuperSpy)
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19,573 Posts
Outsider: cam belt tensioner.
 
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