I got my Tein Comfort Sports installed last week and they are making squeaking, creaking and clunking noises when i go over bumpy roads. It also makes this sound when i back out and pull into my driveway. Any thoughts as to why they are making these sounds and is it bad?? Note that i bought these used with 2k miles on them.

 

first place i would look is the nut on the top hat of the strut. Look under your hood and see if you can torque down that nut any more than it already is (torque wrench or impact wrench). Needs to be really tight.

The other thing i would look for is to see if the coil overs spring is sitting correctly in its perch....