Anyone who is having an issue with a knock that can be felt on the tie rods and steering rack end shafts, and have been told you need a new rack, I solved my issue by adjusting the 17mm nut on the rack. I pulled the drivers side rack boot and pulled it back from therack and had an assistant rock the steering wheel back and forth and I could literally see the rack arm moving up and down.I adjusted the nut until the movement went away. Problem Solved! Local Indy shop wants to charge me $3200 to fix!

Interesting, I’m going to have a look as I have the same thing, I can feel through the track rod ends, steering rack is secure and the track rod ends are good, really annoying over bumpy ground 2009 (2010 MY) 5.0 Supercharged Autobiography
2007 TDV8 Vogue SE
2005 BMW E63 645ci
2024 Porsche Macan

Where exactly is the nut? Mine rattles at 1 end but the inner joints were replaced only a short while ago and no play can be felt with the ball-joint disconnected from the knuckle.

Thanks - much appreciated.

Hello, I have the same issue with a new (refurbished) rack/pinion. I went to adjust the tension, the noise eventually goes away but the steering wheel is now super tight. I tried backing it off but the noise comes back. Any advice would be appreciated. Thanks!

Did the refurbished rack include the rack-ends? Mine's rattle was due to a very prematurely worn-out inner rack-end balljoint due to dirt ingress from an improperly fitted rack boot. Another steering noise, a loud groan, was caused by a dry ball-joint in a front Delphi brand suspension arm which had only been fitted 1 year earlier.

Hi thanks for the quick response. I fitted with new ends when I replaced the rack. Its definitely the rack, I had my son move the steering wheel back and forth while I was under the car.

I’ve got the same issue right now. I’m trying to understand the difference between the 5mm set screw and the 17mm nut. Right now without changing anything the set screw seems to be very loose while the 17mm nut is tight.

What procedure did you follow to get the steering back to normal without the annoying rattling noise over bumps?

I hope my rack isn’t too far gone as I discovered this while going 70 mph down a mountain highway when the steering started shaking. All tie rods and ball joints are brand new.