I also have that blow off noise, but no BOV. The only thing that I did was removing all the foam from the air filter box and removing the foam from the filter itself. Now, everytime you even accelerate slightly, releasing the pedal gives a blow off noise.
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Volvo V40 T4, manual, 1998
Renault Laguna V6 24V, manual, 1999
Last edited by edang; Sep 23rd, 2013 at 22:39.
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