every slight bump or imperfection in road there is noise from rear. its a squeaky noise basically. its getting annoying, anybody know how to fix this or is this a bad strut/spring combo?

i knew i should of stayed with my D2 coilovers

 

Just a question for you, other than that what setting are you running on? And how's the front when you go over speed bumps and pot-holes? Any noises in the front?

 

i think friend set it at 3 or 4 all around...should it be set to something else?

front is fine over bumps & no noise from front....only Back

 

I think it's your bump stops. It may need to be cut or greased with WD-40(in which the shock shaft meets the bump stops and makes contact). It sounds crazy, but it works for me.

 

^

let me check that out.

 

Check it out, and come back and post the results.

 

I got my H&R's and Illumina's installed last week, and there is NO noise whatsoever, front or back. I watched them get installed, and they reinstalled the spring isolators (the sleaves that slide over the bottom of the coils to eliminate noise as the suspension moves), are yours back on? Also, they trimmed the bump stops by one row (I'm not sure that this would cause any noise issues if not done, unless you somehow bottom out going over rough roads,bumps at high speed,etc)

 

Hey, i have illumina's-H&R springs and when I go over bumps and pot hole I have a knocking sound coming from the front passenger side. Anyone know what that can be?

 

Did you reuse the rubber sleeves on the end of the springs in the rear? If they're not there it could cause that noise.

 

That the same noise I get. It sounds like its in the center or passenger side. I think it the bushing that's on the stabilizer bar. I'am checking mine this week.

 

No noise, knock on wood.

 

I'll bet it might be the spring isolator is MIA or worn, allowing metal (coil) to metal (strut) contact. Also, did you trim your bump stops? If not, that would be my second bet (a heavy impact will compress the shock, potentially causing impact with the bump stop). I've got the same H&R/Illumina setup that you have, and I have NO noise at all, not even on the roughest roads.

 

Does it matter where the bump stop is trimmed, top or bottom???

 

I have the same issue on the rear passagener side. It scraps the wheel well. Over simple bumps..I think i have the setting at 1 all around..should i go 2 3 or something stiffer or will that make it worse..Man H&R are so high in the fronts man..anyways let me,,,do i need to do bumpstop stuff..