S70Houston

While driving at slow speed and over speed bumps, there is NO noise whatsoever. When driving at approx. 45 - 55 mph over rough surface roads, there is an occasional squeaking/chirping sound. Real quick, sounds like a high pitch chirp, which can only be heard with the window rolled down.

My mechanic looked at it while the car was in the shop for maintenance last week. Says he cannot see anything abnormal on the undercarriage and he also did not notice anything while driving.

Any ideas what this could be? Is it the first stages of the ball joints wearing out? Am I too ****?

Thanks very much in advance.

rodneypierce

Usually ball joints will be like a creaking sound.