I bought a 2004 LS. More and more, I notice a shudder or tremor through the car when going over rough patches of pavement. It's subtle, so it took me a while to notice it, and now I find it really annoying.
It's also not a cyclical vibration, so I don't think it's a tire balancing issue.
Has anyone ever had this before?
The car is all stock with Bilstein shocks and only 76,000 km (47,000 miles.)
I thought it may have been the 14-year-old tires, but the issue persists on brand new tires.
I have a 2002 SE as well, and that one never had this issue on OEM shocks or after I upgraded them.
Thoughts?