hello everyone,
i upgraded my suspension to Koni sport with Nm springs in last month, and have drove about 500 miles since then. i got the alignment done after 150 miles. and everything was fine. but in about 2 weeks ago, i started noticing some weird squeaking noise coming from the rear every time i run over the speed bump(i am usually very slow on bump stop). the squeaking sound is more like a rubber rubbing against the surface of a piece of glass. i took the car in to my local mechanic shop for a checkup, and they have no idea what causes the noise. and they guess that the noise may come from the Koni shocks or the spring. but then my springs and koni shocks are relatively new, i bought them new from WMW, and have put only about 500 miles on them. so, i am posting here to see if anyone have encountered the same problem. any thoughts?

i will try to make a video(if it is possible tomorrow,or within the next week) to address my problem more clearly.

thanks for reading...

 

1st thing to check is that they are assembled correctly.