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Showing results for tags 'shrillsound dash high speed'.
Dear Boxster-mates, I'd appreciate your help very much, here. Lately, I have been experiencing this shrill sound when the car moves at higher speeds, and disappears when the speed lowers. I looked up whistling sound, even though the sound feels more like a loose bearing spinning at high rpm, on the forums and cross-checked the following, 1) Check front hood level from bumper - hood is lower than the bumper. Should they be even? 2) Check dash trimmings - all seem to be in place. 3) Aligned and taped down the three plastic pieces which cover the battery and cabin filter so that they don't move. 4) Lowering the window or driving when the top down, doesn't seem to change the appearance of the sound or its disappearance. It seems to be only speed induced. I have a 7 second mp4 file of this sound but am unable to upload to the site. Any insights on what to check next? Many thanks in advance!