lexasgs400

i installed eibach and bilstien shocks on my 1998 gs400 and when i go over speed bumps the rear springs make a noise the only way i can describe it is a SPRING noise
any help would be appreciated

RON430

lexasgs400 - When I installed my bilsteins, it took a couple of weeks but I developed a "spring" noise from the back. Didn't need to go over anything severe, in fact you could go to the back and just bounce the fender and would hear it. Went back to my installer and he instantly heard it and said they could make it go away by wrapping the springs which puts a sleeve or "wrap" over the spring to quiet it. I made an appointment to go in and have it taken care of. Problem is, the noise just went away and I never went in. I think it lasted for several weeks but then just went away. Probably the springs settling into the seat. I have stock springs. Don't know if yours will go away but my installer instantly knew what the problem was and how to make it stop so if it is really bothering you I would head back to the installer. If they don't know how to make it go away, I would look for somebody else. My understanding is that quite a few cars wrap the springs to keep them quiet, particulalry the high end luxo mods. Hope everything works out.

MGS4

Let the spring settle a bit. Usually takes 2 - 4 weeks.

lexasgs400

they have been on the car for over 6 months