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2003 S40 Engine sound question S40-V40

posted by  typer on  Wed Jul 2 16:59 CST 2003
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last visit: Thu Nov 1 07:42 CST 2001
[RELATED]

Hi All!

My 2003 S40 has about 2,600 miles on it. Today I drove without the stereo and noticed a peculiar sound. Has anyone else experienced it? I would like to avoid a trip to the dealer if it's normal. The sound: when accelerating at light-part throttle, there is a "whoosh" sound coming from the engine. When I let off the throttle, there is a sound similar to a blowoff valve (a popping, grunting sound).

Thanks for your ideas.





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