Question about 2003 Volvo XC70

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There is a whistling, loud sound coming from under hood in my XC 2001. Will this be costly to fix... and what is it? Thanks so much

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  • ray11479 Oct 19, 2008

    i have the same issue with my 01 volvo s60!

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Whistling sounds under the hood almost always indicate a vacuum hose leak. Open the hood and listen for the location. Look for disconnected hoses, broken hose joiners, cracked rubber.

Cheap repair, for sure. Most hardware stores have the correct rubber hose size.

Posted on Oct 23, 2008

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Pull up the dip stick and tell me if it goes away

Posted on Aug 26, 2008

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Sounds like air is shooting out when accelerating. Could this be an exhaust leak? Plugs, coils, hoses seem fine. Noise is coming from passenger side under engine sounds like.


yes could very well be an exhaust leak.but that should be kinda loud and annoying..also u could have a slight whistling sound coming from ur air intake hose coming from air cleaner box to ur intake or throttle body or ur air inlet goin to the motor. when the motor is accelerated it would produce a high pitch sound like a whistling .hope this can help

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