Herm

1993 LS 400 85,000 miles - Has Pirelli P4000 tires - a few months old. Perhaps it is because LS is so quiet otherwise but it sure sounds like tire noise to me - are these tires known to be noisy on the LS - Is noise from a worn wheel bearing a possibility ? Noise starts at 15 to 20 MPH stays pretty much constant at higher speeds. Any way to tell without swapping tires ? Appreciate any thoughts. - Herm

tn52

You will have to do something for sure here:
1. Jack the car up and check wheels bearings condition for play/looseness & noise (shake and spin them).
2. Check tires for uneven wear and
3. Rotate the tires and see if you hear any change

lextek

I'm betting on tire noise, 100%.

rajah996

Road Noise! Im rolling on my third set of P6000 tires
and they are loud. I find the tires loud, but love the
handling due to the dry seasons and rainy seasons
in FLA. Having worthy tires is well worth a little extra
noise.

-R

Herm

Thanks for the thoughts! I'm using P4000's (as opposed to the P6000's mentioned in the reply). I can certainly live with the tire noise but I just want to be sure it is tire noise as opposed to something else - Herm