2004 volvo S40

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01-24-2011, 06:11 PM

lito1947

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2004 volvo S40

check engine light on and when running, whirring sound appears. One mechanic says breather box to be replaced. Please advise, Thanks a lot.

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01-24-2011, 06:42 PM

Mad Matt

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Need a new PCV system (Breather Box is part of the PCV).
Lots of info about it on Swedespeed.

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01-24-2011, 10:19 PM

AutoNaut

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Is your car a 2004.5 (newer body style)?
Stan

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