This is kind of a long shot but I thought I'd ask.

I have the PSS9s installed on my car. They are set pretty stiff and don't take too kind to the streets of DC and the pot holes. Recently there was a noise, like a clunk/thumping noise when I hit a bump. Now it's worse and louder. You can hear it on the rebound of the spring (almost like something is loose). Not sure if it's a blown shock or possibly something else. Anyone experience this? (Again sorry, I know it could be a bunch of things.) A control arm wouldn't come loose would it?

Thanks,
Jon Swift

 

this is a known issue - due to install. The spring is compressing and slipping - this is normal. But the stock rubber/steel sleeves need to be used on the top of the spring when installing, if not you get the sound....and I have it also.

 

It didn't use to do it, but you might be right, it almost feels like it's slipping, I can almost feel it rattling on the rebound.

 

you can do a search here for more info
or go to google and search pss9 noise

 

Anyone get a thumping noise even on the stock suspension? I have that right now and am trying to figure out what it is