Hissing noise from the back of the engine near the egr cooler

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6 March, 20206 yr

Hi I'm having strange hissing noise from the back of the engine on my skoda octavia 1.6 mk3 2014 the hissing come from the back of the engine around the egr cooler the noise stops every time I unplug the n75 valve any help would be appreciated 😊

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Hissing noise from the back of the engine near the egr cooler

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