I have a 2002 Ford Explorer, 4x4. I'm getting a low level noise from the front wheels. Sounds like an airplane type noise. It's louder at low speeds but still hear it at high speeds. At first, thought it was tires. Added 4 new wranglers. Noise is still there. Noticed that the sound increases a bit when turning. Wheels have rubber boots for grease in back. Is it wheel bearings or lack of grease. Can I add grease some how, without destroying the boot. Thank yuo for your advice in advance.
Mike Davis
Optional Information:
2002
Ford explorer v-6
Already Tried:
new tires