I'm worried about a high pitch whistling coming from my car (20000mi). Unfortunately I can't located the source precisely. The noise appears at 30mph and is still noticeable at 50mph, but then wind noises cover the source. It seems not to change the frequency when driving faster. It's not the serpentine belt because it's not rpm related and a defective gas pump makes a different noise. I exclude wind noise too.
First I thought it is coming from my chin spoiler which was a little bit loose. Maybe it's brake disk related. I noticed on one disk I have a pretty deep groove. But there is no unusual friction or unusual heat coming from the brakes after driving.
First time I noticed this whistling noise was after I had to cross a deep puddle, but it may be only be by coincidence.
Thanks for your ideas
First I thought it is coming from my chin spoiler which was a little bit loose. Maybe it's brake disk related. I noticed on one disk I have a pretty deep groove. But there is no unusual friction or unusual heat coming from the brakes after driving.
First time I noticed this whistling noise was after I had to cross a deep puddle, but it may be only be by coincidence.
Thanks for your ideas