[Landholt]

After some work at a shop i got my car back and lost my beautiful whistle. Now its more rapid and quiet, like a "ths ths ths ths" instead of the loud and full vent "piiissshh." The adjuster screw is almost all the way in and i trouble shot by backing it off a few turns with no change. I saw somewhere that the secondary valve may have broke since its made of plastic, so any input would greatly help!! I want my whistle back!