Hello all, I am having trouble diagnosing a minor inconvenience and wondering if someone here could lend their opinion. Over very small bumps I can feel a knock through the steering wheel. I can easily reproduce it if the car is stationary and I saw at the wheel. On the ground I can't tell where it is coming from, so I got it on a lift. I shook the driver's tire at 12 and 6 and 9 and 3. Both tests felt connected and solid. Over to the passenger side 12 and 6 felt good, which means the wheel bearing is good, but 9 and 3 is where the noise is. See the attached video. I know the outer tie rod is good because I already changed it. I know it's not driveline or suspension related because the noise still happens with the weight off the wheels. So to me that narrows it down to the passenger inner tie rod or the steering rack itself. I think (and hope) it is the inner tie rod because if the rack was bad shouldn't the 9 and 3 test on the driver's side yielded the same result? What do you guys think?
Volume all the way up on the videos, I promise there are no jump scares.
IMG_4546 by
Patrick Heyboer, on Flickr
FullSizeRender by
Patrick Heyboer, on Flickr