fedmax

Asking for help regarding noise from the front suspension. I had a mechanic look at it but couln't find anything wrong.
When I drive over cobblestone pavement or surfaces than are very uneven where the suspension has to work and adapt fast with up and down movements I hear a clonk or nock noise from the front right wheel. Sounds like something can move up and down that shouldn't but we couldn't find anything loose.

Any ideas?

dantzig

Do you have a stock or modified suspension, particularly the sway bars?

fedmax

All stock - 2002 996TT

The mechanic told me that Porsches are known to have noises in suspension but I don't believe it.

fedmax

An additional comment: in my area I have a bumby road that is quite steep. When I drive down, 2nd gear without breaking the noise can be well heard. When I apply the break the noise is gone. So either it makes a a difference in putting pressure to some components of the suspension system or it has something to do with the brake itself.

dantzig

Could be a brake pad rattling in the caliper. I'm in Lausanne - any chance you are close enough for me to hear it in person?

Jon

fedmax

Hi Jon, are you working as a mechanic? I visit Geneva quite often but always take the train - could make an exception next time if we get to meet. We'll stay in contact via PM.

fedmax

Was on a drive earlier on. I don't think it has anything to do with the brakes. Comes more central. Can anything else be loose, maybe it's not the suspension...steering column or so?

T2

Drop links on the suspension is my guess

Dock

I agree.

911hk

Control arm maybe?

fedmax

Ok, I checked the pads, they're ok, they don't move. About the drop links and the control arm where would the issue be or how would I check it?

BTW, control arm I know how to find (996 341 043 03), drop links are stabaliser mountings (996 343 073 04)?

TT Surgeon

I would suspect the front sway bar links.

John 996 TT Cab

I had this after lowering my TT by using Ruf sport springs. Only on hard right steering lock and reversing out of my driveway (there is a slight incline difference between the driveway and street). Mechanic couldn't find anything. The problem solved itself however when I went to Bilstein PSS 10 coilovers a few months ago.

John in Vancouver