Hi all, noob to the forum and GS ownership, just picked up a 2000 GS400 Platinum Edition. Nice shape, relatively low miles.
Noticed one issue that didn't appear on my test of the car - it's a high-pitched whine that sounds like radio interference. It only occurs at around 40 mph, when it's very cold.
I turned the radio off to confirm it's NOT the radio. I also put the car in neutral and revved the engine free to confirm it's not the engine.
My first thought is a wheel bearing. The whine stops once the car has been driven maybe a mile, but it's loud and I want to fix it. Any thoughts?
Appears to be coming from the left rear, but no way to confirm that.
Thanks in advance,